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Series of chemical reactions by which compounds exchange ligands
In chemistry, dissociative substitution describes a reaction pathway by which compounds interchange ligands. The term is typically applied to coordination
Dissociative_substitution
Chemical reaction in which one functional group in a compound is replaced by another
A substitution reaction (also known as single displacement reaction or single substitution reaction) is a chemical reaction during which one functional
Substitution_reaction
Process of exchange of ligands between coordination compounds
is dissociative substitution, being analogous to the Sn1 pathway. Intermediate pathways exist between the pure associative and pure dissociative pathways
Associative_substitution
Ion or molecule bound to a metal atom
mechanisms are recognized: associative substitution or by dissociative substitution. Associative substitution closely resembles the SN2 mechanism in organic
Ligand
Memory disorder
Dissociative amnesia or psychogenic amnesia is a dissociative disorder characterized by retrospectively reported memory gaps. These gaps involve an inability
Dissociative_amnesia
Substitution reaction with a carbocation intermediate
inorganic chemistry, the SN1 reaction is often known as the dissociative substitution. This dissociation pathway is well-described by the cis effect. A reaction
SN1_reaction
Separation of molecules or ionic compounds into smaller constituent entities
Dissociation in chemistry is a general process in which molecules (or ionic compounds such as salts, or complexes) separate or split into other things
Dissociation_(chemistry)
Overview of and topical guide to organic chemistry
Associative substitution β-hydride elimination Carbometalation Carbon-hydrogen bond activation Cyclometalation Dissociative substitution Electron transfer
Outline_of_organic_chemistry
Study of organic compounds containing metal(s)
compounds undergo several important reactions: associative and dissociative substitution oxidative addition and reductive elimination transmetalation migratory
Organometallic_chemistry
Chemical compound
2 AcOH, x = 0 or 1 The reaction proceeds through a non-redox dissociative substitution mechanism and usually affords the cis isomer. Like most amino
Copper(II)_glycinate
Chemical compound composed of a metal ion bound to water ligands
differ by a factor of 109 also. Water exchange usually follows a dissociative substitution pathway, so the rate constants indicate first order reactions
Metal_aquo_complex
Chemical property of transition metals
exchange occurs via dissociative substitution mechanisms, wherein the rate of reaction is determined by the rate of dissociation of a ligand. On the other
18-electron_rule
Class of compounds based upon the amphetamine structure
substituted phenethylamine class of compounds. Substitution of hydrogen atoms results in a large class of compounds. Typical reaction is substitution
Substituted_amphetamine
Chemical compound
pressures. The first step in the hydroformylation process is the dissociative substitution of an alkene for a PPh3. The migratory insertion of this 18-electron
Tris(triphenylphosphine)rhodium carbonyl hydride
Tris(triphenylphosphine)rhodium_carbonyl_hydride
Chemical compound
arylcyclohexylamine family, with dissociative effects presumably similar to those of ketamine. Its general effects, dissociative or otherwise, may deviate from
2F-NENDCK
(possibly), MK-212, quipazine, and RH-34. Dissociatives, also known as dissociative hallucinogens or dissociative anesthetics, are NMDA receptor antagonists
List_of_hallucinogens
cyanohydrin). It is useful for synthesizing phencyclidine and related dissociative anesthetics. Unlike a traditional Grignard reaction where the nucleophile
Bruylants_reaction
Chemical property
a dissociation constant (KD) is a specific type of equilibrium constant that measures the propensity of a larger object to separate (dissociate) reversibly
Dissociation_constant
Cough suppressant and dissociative drug
depressive disorder. It is in the morphinan class of medications with dissociative and stimulant properties (at lower doses). Dextromethorphan does not
Dextromethorphan
Class of chemical compounds
potent than the 2C and DOx drugs. This relates to the fact that the 2,4,5-substitution pattern tends to be optimal in terms of receptor affinity and potency
Scaline
Class of anesthetics
recreationally for their dissociative, hallucinogenic, and euphoriant properties. When used recreationally, they are classified as dissociative drugs. NMDA receptor
NMDA_receptor_antagonist
Substance that is used in place of biological blood
A blood substitute (also called artificial blood or blood surrogate) is a substance used to mimic and fulfill some functions of biological blood. In some
Blood_substitute
Class of chemical compounds
other univalent substituents; (ii) by substitution at the 3-position with an alkyl substituent; (iii) by substitution at the nitrogen atom with alkyl or
Substituted_cathinone
Chemical class of organic compounds
Hence, any substituted phenethylamine can be classified according to the substitution of hydrogen (H) atoms on phenethylamine's phenyl ring, sidechain, or
Substituted_phenethylamine
Chemical compound
"Alkylation of Diphenylmethane with Alkyl Halides by Sodium Amide. Substitution versus β-Elimination. Relative Acidities of Diphenylmethane and Ammonia"
Diphenylmethane
Mechanism for nucleophilic substitution reactions
In chemistry, SNi (substitution nucleophilic internal) refers to a specific, regio-selective but not often encountered reaction mechanism for nucleophilic
SNi
Class of compounds based upon the β-hydroxyamphetamine structure
Substituted β-hydroxyamphetamines, or simply β-hydroxyamphetamines, also known as phenylisopropanolamines, phenylpropanolamines, norephedrines, or cathinols
Substituted β-hydroxyamphetamine
Substituted_β-hydroxyamphetamine
Class of chemical compounds
notably as NMDA receptor antagonists, and have attracted attention as dissociative designer drugs that produce feelings of detachment from reality or oneself
1,2-Diarylethylamine
Parent compound of opioids
psychoactive drugs, consisting of opiate analgesics, cough suppressants, and dissociative hallucinogens, among others. Typical examples include compounds such
Morphinan
Measure of an acid's strength in solution
In chemistry, an acid dissociation constant (also known as acidity constant, or acid-ionization constant; denoted K a {\displaystyle K_{a}} ) is a quantitative
Acid_dissociation_constant
Class of chemical compounds
Substituted piperazines are a class of chemical compounds based on a piperazine core. Some are used as recreational drugs and some are used in scientific
Substituted_piperazine
Chemical compound
compound of the arylcyclohexylamine class, which is an analog of the dissociative anesthetic drug ketamine in which the chlorine atom has been replaced
2-Bromodeschloroketamine
Class of chemical compounds
3C (3C-x), also known as 4-substituted 3,5-dimethoxyamphetamines, substituted 3,4,5-trimethoxyamphetamine (3,4,5-TMA or TMA-1) analogues, or 3C-scalines
3C_(psychedelics)
Class of psychoactive drugs
The substituted methylenedioxyphenethylamines (abbreviated as MDxx) represent a diverse chemical class of compounds derived from phenethylamines. This
Substituted methylenedioxyphenethylamine
Substituted_methylenedioxyphenethylamine
Dissociative anesthetic designer drug
Diphenidine (1,2-DEP, DPD, DND) is a dissociative anesthetic that has been sold as a designer drug. Diphenidine was first synthesized in 1924 using a Bruylants
Diphenidine
Class of chemical compounds
A substituted tetrahydroisoquinoline is a tetrahydroisoquinoline with one or more chemical substituents. Many simple tetrahydroisoquinoline alkaloids
Substituted tetrahydroisoquinoline
Substituted_tetrahydroisoquinoline
Class of chemical compounds
has a 2,4,6-substitution pattern. The majority of the compounds listed in the last few tables has carried the 3,4,5- or the 2,4,5-substitution pattern. The
Ψ-PEA
Chemical compound
dichlorination steps. Addition rather than substitution takes place, due to the very high C–H bond dissociation energy (112 kcal/mol) that disfavors abstraction
Hexachlorocyclohexane
is a tricyclic chemical compound. Derivatives of dibenzodiazepine, or substituted dibenzodiazepines, include the antipsychotic clozapine, the antihistamine
Dibenzodiazepine
Class of chemical compounds
and its analogues, as illicitly used recreational drugs due to their dissociative hallucinogenic and euphoriant effects. Since that time, the class has
Arylcyclohexylamine
dissociative hallucinogen – alcoholism – Awakn Life Sciences Ketamine oral (Keticap) – ionotropic glutamate NMDA receptor antagonist and dissociative
List of investigational hallucinogens and entactogens
List_of_investigational_hallucinogens_and_entactogens
Mental disorder caused by excess use of stimulant drugs
and amphetamines, designer drugs such as "bath salts", as well as the dissociative drug phencyclidine (PCP) may also cause a theorized severe and life-threatening
Stimulant_psychosis
Class of chemical compounds
4-Substituted-2,5-dimethoxyamphetamines (DOx) is a chemical class of substituted amphetamine derivatives featuring methoxy groups at the 2- and 5- positions
DOx
Chemical compound
(also known as 2'-Fl-2-Oxo-PCM, fluoroketamine, and 2-FDCK) is a dissociative anesthetic related to ketamine. Its sale and use as a designer drug has
2-Fluorodeschloroketamine
Chemical compound
methylamine in ketamine synthesis) in the clandestine synthesis of cyclidine dissociative anesthetic agents (the analogue of ketamine which is missing the 2-chloro
Ethylamine
American art teacher (1923–1998)
February 26, 1998) was an American art teacher who was reported to have dissociative identity disorder (then known as multiple personality disorder). Her
Shirley_Ardell_Mason
Pharmaceutical compound
morphine-induced analgesia. F-17475 substitutes for ketamine in rodent drug discrimination tests, suggesting that it may have dissociative hallucinogen effects in
F-17475
This is a list of aminorex analogues, also known as substituted 2-amino-5-aryloxazolines. Aminorex itself is a stimulant drug with a 5-phenyl-2-amino-oxazoline
List_of_aminorex_analogues
Index of chemical compounds with the same name
4-Hydroxytryptamines 5-Hydroxytryptamines 5-Methoxytryptamines Miscellaneous Dissociatives/NMDA receptor antagonists: Adamantanes Arylcyclohexylamines Diarylethylamines
Cycloalkylaminopropane
Class of indoles
methyl or ethyl group, attached at the alpha carbon, and in most cases no substitution on the amine nitrogen. α-Alkylation of tryptamine makes it much more
Substituted_tryptamine
Class of chemical compounds
methallylescaline) Ψ-PEAs (4-substituted 2,6-DMPEAs) (e.g., Ψ-2C-O (TMPEA-6), Ψ-2C-DFMO (ψ-2C-O-35)) Other substitution patterns (e.g., isomescaline,
Substituted methoxyphenethylamine
Substituted_methoxyphenethylamine
Class of chemical compounds
of the compounds 3a,b, 4a,b or 5b. [...] However, indan 5a gave full substitution, with an ED50 = 2.18 mg/kg, approximately 1/15 the potency of the hallucinogen
Substituted_2-aminoindane
Psychiatric disorder
that patients with Capgras delusion may have a "mirror image" or double dissociation of prosopagnosia, in that their conscious ability to recognize faces
Capgras_delusion
Methaqualone and Beyond: Structure–Activity Relationship of 6-, 7-, and 8-Substituted 2,3-Diphenyl-quinazolin-4(3 H )-ones and in Silico Prediction of Putative
List of methaqualone analogues
List_of_methaqualone_analogues
Class of chemical compounds
The substituted benzothiophenes are a class of chemical compounds based on benzothiophene. They are closely related to the substituted benzofurans, substituted
Substituted_benzothiophene
Speed that exceeds five times the speed of sound (Mach 5 and above)
varies, since individual physical changes in the airflow (like molecular dissociation and ionization) occur at different speeds; these effects collectively
Hypersonic_speed
Class of chemical compounds
Lizard Labs in the 2010s and 2020s. Substituted ergoline Partial lysergamide Substituted tryptamine Substituted phenethylamine Lizard Labs Jamieson CS
Lysergamides
Breaking a molecular bond such that both fragments retain an electron
(homoios) 'equal' and λύσις (lusis) 'loosening') or homolytic fission is the dissociation of a molecular bond by a process where each of the fragments (an atom
Homolysis_(chemistry)
Class of chemical compounds
simplified ibogaine analogue, also known as a substituted 1,2,3,4,5,6-hexahydroazepino[4,5-b]indole (or simply substituted hexahydroazepinoindole), is a derivative
Ibogalog
One of four stable isomers of butanediol
4-Hydroxytryptamines 5-Hydroxytryptamines 5-Methoxytryptamines Miscellaneous Dissociatives/NMDA receptor antagonists: Adamantanes Arylcyclohexylamines Diarylethylamines
1,4-Butanediol
Group of chemical compounds
classified as diterpenoid furanolactones. Salvinorin A is a hallucinogen with dissociative effects. Several salvinorins have been isolated and characterized. Originally
Salvinorin
Chemical compound
4-Hydroxytryptamines 5-Hydroxytryptamines 5-Methoxytryptamines Miscellaneous Dissociatives/NMDA receptor antagonists: Adamantanes Arylcyclohexylamines Diarylethylamines
Phenylethylpyrrolidine
Class of chemical compounds
act as agonists at serotonin receptors, and compounds with an N-propyl substitution act as dopamine receptor agonists. A number of derivatives from this
Substituted_phenylmorpholine
Dementia involving the frontal or temporal lobes
(semantic dementia and progressive nonfluent aphasia) can be regionally dissociated by imaging approaches in vivo. The confusion between Alzheimer's and
Frontotemporal_dementia
Chemical compound
chlorochromate Pyridinium chloride Linnell, Robert (1960). "Notes – Dissociation Constants of 2-Substituted Pyridines". Journal of Organic Chemistry. 25 (2): 290.
Pyridinium
Chemical reactions by which metal amine complexes exchange ligands
mechanism describes the pathway by which many metal amine complexes undergo substitution, that is, ligand exchange. Typically, the reaction entails reaction of
SN1CB_mechanism
Pharmaceutical compound
drug from the arylcyclohexylamine family, which is believed to have dissociative effects. It has reportedly been sold over the internet since 2025. No
2-FXPr
American medical television drama series
knew he had left the hospital. Robby grows concerned after Al-Hashimi dissociates when she examines a teenage asthma patient; Dr. Crus Henderson prevents
The_Pitt
As with many other opioid drugs of this type, replacing the "tail" substitution on the piperidine with a p-fluorobutyrophenone produces antipsychotics
List_of_orphine_opioids
Progressive neurodegenerative disease
Moon M (2025). "Dual modulation of amyloid beta and tau aggregation and dissociation in Alzheimer's disease: a comprehensive review of the characteristics
Alzheimer's_disease
Class of drugs
designer drugs. Substitution of the benzyl for thienylmethyl, pyridylmethyl, α-napthylmethyl or styryl has a potency-reducing effect. Substitution in position
Nitazenes
Class of chemical compounds
converted to epinephrine. Various stimulant drugs (such as a number of substituted amphetamines) are catecholamine analogues. Catecholamines have the distinct
Catecholamine
Medical condition
and unspecified forms; dissociative fugue is a subtype of dissociative amnesia rather than a separate disorder. Dissociative identity disorder was named
Mental_disorder
Class of chemical compounds
The substituted naphthylethylamines are a class of chemical compounds based on naphthalene. Many naphthylethylamines are naphthylaminopropanes (also known
Substituted naphthylethylamine
Substituted_naphthylethylamine
Disorder of depression and mood episodes
Inventory and the Hypomania Checklist. The use of evaluation scales cannot substitute for a full clinical interview, but they serve to systematize the recollection
Bipolar_disorder
Class of chemical compounds
4C (4C-x), also known as 4-substituted 2,5-dimethoxy-α-ethylphenethylamines, is a general name for the family of psychedelic and related phenylisobutylamines
4C_(psychedelics)
Cough suppressant drug susceptible to misuse
cold medicines, is used as a recreational drug and entheogen for its dissociative effects. Street names include Brownies, Dextro, Drix, Gel, Dex, Del,
Recreational use of dextromethorphan
Recreational_use_of_dextromethorphan
Process that leads to chemical changes
alternative to aromatic substitution is electrophilic aliphatic substitution. It is similar to the nucleophilic aliphatic substitution and also has two major
Chemical_reaction
Neurological disorder of excessive time spent sleeping or excessive sleepiness
from the possibly offending medication(s) is needed; then, medication substitution can be undertaken. Mood disorders, like depression, anxiety disorder
Hypersomnia
Chemical compound
Methoxphenidine (methoxydiphenidine, 2-MeO-Diphenidine, MXP) is a dissociative of the diarylethylamine class that has been sold online as a designer drug
Methoxphenidine
Serotonin receptor agonist
prodrug of norpsilocin. 4-HT, also known as 4-hydroxytryptamine, is a substituted tryptamine derivative. It is a positional isomer of the neurotransmitter
4-Hydroxytryptamine
Category of mental disorders
tendency to develop into stress-related disorders like PTSD, CPTSD or dissociative disorders. Stress is wear and tear on the body in response to stressful
Stress-related_disorders
Geometrical-optical illusion
illusion also occurs in touch and with an auditory-to-visual sensory-substitution device. However, prior visual experience seems to be a necessary component
Ponzo_illusion
Chemical compound
potent drugs such as MDMA. While it is also similar in structure to the dissociative drug diphenidine, Alpha-D2PV appears to produce only stimulant effects
Α-D2PV
compounds are known which fit the same general structural pattern, but with substitution on the piperidine ring (e.g. SCH-5472, Difemetorex, N-benzylethylphenidate)
List of methylphenidate analogues
List_of_methylphenidate_analogues
Chemical compound
80 °C. Dippy, J. F. J.; Hughes, S. R. C.; Rozanski, A. (1959). "498. The dissociation constants of some symmetrically disubstituted succinic acids". Journal
Nitroacetic_acid
Neurodevelopmental disorder
damaged. The WAIS and WISC have attempted to counter this by introducing a substitute scoring system that only counts sub-tests that are robust against executive
Attention deficit hyperactivity disorder
Attention_deficit_hyperactivity_disorder
desoxyscaline, also known as a desoxygenated scaline and a type of 4-substituted 3,5-dimethoxyphenethylamine, is an analogue of the phenethylamine psychedelic
Desoxyscaline
Condition involving social and behavioral differences
Controversies about both the causes and diagnoses of autism Diagnostic substitution Global perceptions of autism – Global variation of autism diagnoses,
Autism
Polycyclic aromatic hydrocarbon composed of three fused benzene rings
psychoactive drugs, consisting of opiate analgesics, cough suppressants, and dissociative hallucinogens, among others. Examples morphine, codeine, and dextromethorphan
Phenanthrene
Class of chemical compounds
The substituted benzofurans are a class of chemical compounds based on the heterocyclic and polycyclic compound benzofuran. Many medicines use the benzofuran
Substituted_benzofuran
Eating disorder
bodily thinness and the new cultural technique of dieting that gradually substituted the corset in the late 19th and early 20th century. In 1979, Gerald Russell
Bulimia
Chemical compound
"Chemistry and spectroscopy in strongly acidic solutions: electrophilic substitution at alkane-carbon by protons". Chemical Communications. 1967 (13): 635–636
Fluoroantimonic_acid
Organic compound containing an –NO2 group
aromatic compounds retards electrophilic aromatic substitution but facilitates nucleophilic aromatic substitution. Nitro groups are rarely found in nature. They
Nitro_compound
Inability to resist the urge to steal
and pharmacotherapy. Cognitive behavioral therapy (CBT) has primarily substituted the psychoanalytic and dynamic approach in the treatment of kleptomania
Kleptomania
Chemical compound
quipazine fully substitutes for LSD and partially substitutes for mescaline in rodent drug discrimination tests. In addition, quipazine substitutes for DOM in
Quipazine
Chemical compound
4-Methoxyphencyclidine (methoxydine, 4-MeO-PCP) is a dissociative anesthetic drug that has been sold online as a research chemical. It acts as an NMDA
4-MeO-PCP
Inorganic compound of formula Ca(OH)2
89 g/L at 0 °C. Its solubility product Ksp of 5.02×10−6 at 25 °C, its dissociation in water is large enough that its solutions are basic according to the
Calcium_hydroxide
Chemical compound
iodide is a powerful substitution reagent in organic chemistry; for example, it can convert a pyrilium into a phosphinine via substitution. In 1951, Glenn
Phosphonium_iodide
Purported control of a human body by spirits, ghosts, demons
trauma. In entry article on dissociative identity disorder, the DSM-5 states, "possession-form identities in dissociative identity disorder typically
Spirit_possession
travel, tourism, insurance
DISSOCIATIVE SUBSTITUTION
DISSOCIATIVE SUBSTITUTION
Surname or Lastname
English
English : nickname from Middle English derth ‘famine’ (of uncertain application) or de(e)th ‘death’, Old English dēa{dh}. The latter name would have been acquired by someone who had played the part of the personified figure of Death in a pageant or play, or else one who was habitually gloomy or sickly, and the insertion of the letter -r- may have been a deliberate attempt to dissociate the name from death.
Surname or Lastname
English
English : from the medieval personal name Hicke, a pet form of Richard. The substitution of H- as the initial resulted from the inability of the English to cope with the velar Norman R-.Dutch : from a pet form of a Germanic personal name, such as Icco or Hikke (a Frisian derivative of a compound name with the first element hild ‘strife’, ‘battle’).East German : from a derivative of a Slavic pet form of Heinrich.South German : from Hiko, a pet form of any of the Germanic personal names formed with hild ‘strife’, ‘battle’ as the first element.
DISSOCIATIVE SUBSTITUTION
DISSOCIATIVE SUBSTITUTION
DISSOCIATIVE SUBSTITUTION
DISSOCIATIVE SUBSTITUTION
DISSOCIATIVE SUBSTITUTION
DISSOCIATIVE SUBSTITUTION
DISSOCIATIVE SUBSTITUTION
a.
Of or pertaining to substitution; standing in the place of another; substituted.
p. pr. & vb. n.
of Dissociate
v. t.
To disconnect from things associated; to disunite; to dissociate.
v. t.
To render unsocial.
a.
Tending or leading to dissociation.
a.
Having or exercising delegated power; acting by substitution, or in the place of another.
v. t.
To subject to thermolysis; to dissociate by heat.
v. t.
To separate from fellowship or union; to disunite; to disjoin; as, to dissociate the particles of a concrete substance.
a.
Having the quality of associating; tending or leading to association; as, the associative faculty.
n.
The resolution of a compound into parts by heat; dissociation by heat.
a.
Possessing some quality in the third degree; having been subjected to the substitution of three atoms or radicals; as, a tertiary alcohol, amine, or salt. Cf. Primary, and Secondary.
n.
The process by which a compound body breaks up into simpler constituents; -- said particularly of the action of heat on gaseous or volatile substances; as, the dissociation of the sulphur molecules; the dissociation of ammonium chloride into hydrochloric acid and ammonia.
a.
Of or pertaining to substitution; substitutional.
n.
The act of dissociating or disuniting; a state of separation; disunion.
a.
Having or exercising delegated power; acting by substitution, or in the place of another.
n.
removal of things from one place to another; substitution of one thing for another.
imp. & p. p.
of Dissociate
n.
The act of substituting or putting one person or thing in the place of another; as, the substitution of an agent, attorney, or representative to act for one in his absense; the substitution of bank notes for gold and silver as a circulating medium.
n.
Having the power to dissolve anything; solvent.
v. t.
To free from company; to dissociate.
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