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Chemical compound
Cyclopentanone is the organic compound with the formula (CH2)4CO. This cyclic ketone is a colorless volatile liquid. Ketonic decarboxylation of adipic
Cyclopentanone
Class of enzymes
Cyclopentanone monooxygenase (EC 1.14.13.16) is an enzyme that catalyzes the chemical reaction Cyclopentanone + NADPH + H+ O2 H2O δ-Valerolactone
Cyclopentanone_monooxygenase
Chemical compound
2-[2-(4-Methyl-3-cyclohexen-1-yl)propyl]cyclopentanone (trade name by Givaudan: Nectaryl) is an organic compound belonging to the group of ketones and
2-(2-(4-Methyl-3-cyclohexen-1-yl)propyl)cyclopentanone
2-(2-(4-Methyl-3-cyclohexen-1-yl)propyl)cyclopentanone
Class of chemical compounds
functional group which is composed of a cyclic ketal of a diol with cyclopentanone. It is seen in amcinonide (triamcinolone acetate cyclopentanonide).
Cyclopentanonide
Chemical compound
Cyclopentylamine can be prepared by reductive amination starting with cyclopentanone or cyclopentanol. Pingen, Dennis; Müller, Christian; Vogt, Dieter (2010)
Cyclopentylamine
Chemical compound
barium carbonate in the process. It is also used in the preparation of cyclopentanone, diacetone alcohol and D-gulonic γ-lactone. Barium hydroxide decomposes
Barium_hydroxide
Chemical compound (CH2)4(COOH)2
hydroxide at elevated temperatures, it undergoes ketonization to give cyclopentanone. About 60% of the 2.5 billion kg of adipic acid produced annually is
Adipic_acid
Chemical compound
jasmonates. For example, methyl dihydrojasmonate is synthesized from cyclopentanone, pentanal and dimethyl malonate. Hedione is used in almost all fine
Dimethyl_malonate
Chemical reaction which converts two –COOH groups to >C=O
of intramolecular ketonization is the conversion of adipic acid to cyclopentanone with barium hydroxide. Pham, Tu N.; Sooknoi, Tawan; Crossley, Steven
Ketonic_decarboxylation
Epoxy-based polymer
of the material. SU-8 series photoresists use gamma-butyrolactone or cyclopentanone as the primary solvent. SU-8 was originally developed at IBM in the
SU-8_photoresist
Chemical compound
49.9 °C (121.8 °F; 323.0 K) Related compounds Related hydrocarbons Cyclopentanone Related compounds nitric acid, butyl ester Except where otherwise noted
Butyl_nitrate
Chemical compound
Cyclopentanol is an intermediate in the oxidation of cyclopentene to cyclopentanone. Cyclopentanol at Sigma-Aldrich N. Pino, G. Hincapié, D. López (2018)
Cyclopentanol
catalyzes the chemical reaction cyclopentanol + NAD+ H+ H+ cyclopentanone + NADH The two substrates of this enzyme are cyclopentanol and oxidised
Cyclopentanol_dehydrogenase
Chemical compound
prepared by alkylation of the anion of the self-condensation product of cyclopentanone with N-(2-chloroethyl)-morpholine. Dutta S, Bhat NS (December 2021)
Pentethylcyclanone
Chemical compound
were soon developed. Modern synthesis involves the condensation of cyclopentanone and pentanal, followed by C=C bond isomerisation to give the 2-pentyl-cyclopentenone
Methyl_dihydrojasmonate
Chemical reaction that removes a carboxyl group and releases carbon dioxide
Chemguide. Retrieved 2007-10-22. Thorpe, J. F.; Kon, G. A. R. (1925). "Cyclopentanone". Org. Synth. 5: 37. doi:10.15227/orgsyn.005.0037. Wiley, Richard H
Decarboxylation
Type of firearm propellant
diethanolamine dinitrate, DEADN; DHE), Fivonite (2,2,5,5-tetramethylol-cyclopentanone tetranitrate, CyP), DGN (diethylene glycol dinitrate), and acetyl cellulose
Smokeless_powder
Chemical compound
[skin] IDLH (Immediate danger) 700 ppm Related compounds Related ketones Cyclopentanone, cycloheptanone Related compounds Cyclohexanol Except where otherwise
Cyclohexanone
Chemical compound
Methylenomycin A is a cyclopentanone derived antibiotic produced by Streptomyces coelicolor A3(2) that is effective against both Gram-negative and Gram-positive
Methylenomycin_A
Organosulfur compounds of the form R–SC(=O)–R′
been reported utilising safer coupling reagent T3P and greener solvent cyclopentanone. Acid anhydrides and some lactones also give thioesters upon treatment
Thioester
Index of chemical compounds with the same molecular formula
The molecular formula C5H8O (molar mass: 84.12 g/mol) may refer to: Cyclopentanone 2,3-Dihydropyran trans-2-Methyl-2-butenal 2-Methylbut-3-yn-2-ol 3-Penten-2-one
C5H8O
Organic compounds of the form >C=O
doi:10.15227/orgsyn.021.0079. Thorpe, J. F.; Kon, G. A. R. (1925). "Cyclopentanone". Organic Syntheses. 5: 37. doi:10.15227/orgsyn.005.0037. Herbst, R
Ketone
Index of chemical compounds with the same name
3-Methyl-2-butanone (Methyl isopropyl ketone, MIPK) 3-Pentanone (Diethyl ketone, DEK) Cyclopentanone This set index article lists chemical compounds articles associated
Pentanone
Cleavage of a chemical bond by acids
Schwartz "Conjugate Addition Of A Vinylzirconium Reagent: 3-(1-octen-1-yl)cyclopentanone".Org. Synth. 1993, 71, 83. doi:10.15227/orgsyn.071.0083. Greenwood,
Protonolysis
Inorganic compound (SOCl2)
Precursor for enantioselective synthesis of 3-substituted cyclopentanones". Organic Syntheses; Collected Volumes, vol. 7, p. 495. Kurzer, F.
Thionyl_chloride
Bag used for roasting food in an oven
(392 °F) for two hours, and as much as 0.08% of the total 2-cyclopentyl cyclopentanone content in the bags were observed. A 2007 study which researched roasting
Oven_bag
Chemical compound
Spannenberg, Anke; Li, Yuehui; Hinze, Sandra; De Vries, Johannes G. (2018). "Cyclopentanone Derivatives from 5-Hydroxymethylfurfural via 1-Hydroxyhexane-2,5-dione
2-Hydroxy-3-methyl-2-cyclopenten-1-one
2-Hydroxy-3-methyl-2-cyclopenten-1-one
Chemical phenomenon within ring systems
occurs. In the case of steroids, this reaction has been used to convert cyclopentanone groups to cyclobutanyl derivatives. The Favorskii rearrangement is a
Ring expansion and contraction
Ring_expansion_and_contraction
Organic compound (C8H8) with a cube carbon structure
disubstituted cubane involves bromination of the ethylene ketal of cyclopentanone to give a tribromocyclopentanone derivative. Subsequent steps involve
Cubane
Chemical compound
Methylenomycin B is a cyclopentanone derived antibiotic produced by Streptomyces coelicolor A3(2) that is effective against both Gram-negative and Gram-positive
Methylenomycin_B
Organic reaction
in the orders Cl3CCOCH3 > CH3COCH3 > C6H5COCH3 and cyclohexanone > cyclopentanone > cycloheptanone > cyclooctanone. These orders of reactivity are the
Büchner–Curtius–Schlotterbeck reaction
Büchner–Curtius–Schlotterbeck_reaction
German chemist (1835–1902)
see especially pages 327-330. Wislicenus prepared cyclopentane from cyclopentanone ("Ketopentamethen"), which is prepared by heating calcium adipate. Attribution
Johannes_Wislicenus
Organic reaction
The first catalytic application involved cyclization of 4-pentenal to cyclopentanone using (again) Wilkinson's catalyst. In this reaction the solvent was
Hydroacylation
American chemist
"By-products of the Robinson Annelation Reaction with Cyclohexanone, Cyclopentanone, and Cyclopentane-1,2-dione1". The Journal of Organic Chemistry. 30
Barry_Trost
Chemical reaction
are many examples where the Wolff rearrangement is used to contract cyclopentanone to cyclobutane. The rearrangement is commonly used to form strained
Wolff_rearrangement
Chemical compound
enantiomers. In the first step of the synthesis of heptylcyclopentanone, cyclopentanone and heptanal react by aldol condensation. The resulting reaction product
2-Heptylcyclopentanone
Chemical compound with four carbon rings sharing a single carbon atom
sequence is an adaptation of the Stork enamine alkylation reacting cyclopentanone with 3-bromo-1-butene through an imine derivative with pyrrolidine and
Fenestrane
21-tetrahydroxypregna-1,4-diene-3,20-dione cyclic 16α,17α-acetal with cyclopentanone, 21-acetate Budesonide = 11β,16α,17α,21-tetrahydroxypregna-1,4-diene-3
List_of_corticosteroids
benzamidoisobutyrate (TBI-PAB) Cyclopentanonides (cyclic ketals with cyclopentanone): Amcinonide (triamcinolone acetate cyclopentanonide) Pentanonides (cyclic
List of corticosteroid cyclic ketals
List_of_corticosteroid_cyclic_ketals
Class of chemical compounds
aniline, dimethyl ether, 1,1-difluoroethylene, pyrimidine, chlorobenzene, cyclopentanone, cyanocyclobutane, and cyclopentadienyl. Neon can form a very weak bond
Neon_compounds
Chemical compound
enzyme acetaldehyde dehydrogenase. Other cyclic ketones: cyclobutanone, cyclopentanone, cyclohexanone Other cyclopropane derivatives: cyclopropene, cyclopropenone
Cyclopropanone
Chemical compound
a number of ways. One of the routes involves elimination of α-bromo-cyclopentanone using lithium carbonate and Claisen condensation-decarboxylation-isomerization
Cyclopentenone
Chemical compound
ethylene, has never been observed. Other cyclic ketones: Cyclopropanone Cyclopentanone Cyclohexanone CRC Handbook of Chemistry and Physics. Vol. 90. Boca Raton
Cyclobutanone
Chemical compound
(1997). Conjugate Addition Of A Vinylzirconium Reagent: 3-(1-Octen-1-Yl)Cyclopentanone, Organic Syntheses, Coll. Vol. 9, p.640 (1998); Vol. 71, p.83 (1993)
Schwartz's_reagent
Reaction in organic chemistry
catalysis". ACS Catalysis. doi:10.1021/acscatal.2c01713. PMC 9210454. Cyclopentanone synthesis by intramolecular carbon–hydrogen insertion of diazo ketones
Carbene_C−H_insertion
Chemical compound
some of the potential metabolites such as hexachloro-2-cyclopentanone, hexachloro-3-cyclopentanone, hexachloroindone, or octachloro-3a,4,7,7a-tetrahydro-4
Hexachlorocyclopentadiene
Now EC 1.14.15.15, cholestanetriol 26-monooxygenase EC 1.14.13.16: cyclopentanone monooxygenase EC 1.14.13.17: Now EC 1.14.14.23, cholesterol 7α-monooxygenase
List_of_EC_numbers_(EC_1)
methazolamide 554-57-4 C5H8O cyclobutanecarboxaldehyde 2987-17-9 C5H8O cyclopentanone 120-92-3 C5H8O propargylethyl ether 628-33-1 C5H8O2 acetylacetone 123-54-6
List of compounds with carbon number 5
List_of_compounds_with_carbon_number_5
Prostaglandin subset
carbon-carbon bond between carbons 8 and 12 (which establishes its cyclopentanone ring), hydroxyl residues attached to carbons 9 and 15, and a ketol residue
Cyclopentenone_prostaglandins
Toxin
mechanisms, including a hypothesized digitalis-like effect due to the cyclopentanone ring present in the scaritoxin molecule, validates consideration. Notably
Scaritoxin
Organic compounds containing a metal bound to a triple-bonded carbon
corresponding lithium acetylide. This acetylide adds to the carbonyl center of cyclopentanone. Hydrolysis liberates the alkynyl alcohol. The dimerization of acetylene
Acetylide
Cycloheptene UN 2243 3 Cyclohexyl acetate UN 2244 3 Cyclopentanol UN 2245 3 Cyclopentanone UN 2246 3 Cyclopentene UN 2247 3 n-Decane UN 2248 8 Di-n-butylamine
List of UN numbers 2201 to 2300
List_of_UN_numbers_2201_to_2300
Chemical compound
Grignard addition, and oxidation gave compound 7. Methylation of the cyclopentanone under Noyori's condition using the TASF enolate produced a mixture of
Ptaquiloside
Class of chemical compounds
February 2014). "Microwave Spectra and Structure of the Argon–Cyclopentanone and Neon–Cyclopentanone van der Waals Complexes". The Journal of Physical Chemistry
Argon_compounds
better binding to the active site of aromatase. Changing the D-ring cyclopentanone to a six-membered δ-lactone decreased the binding ability of the compounds
Steroidal_aromatase_inhibitor
sometimes far less stable than their enols. Keto-enol equilibria for cyclopentanone (11) and heptafluorocyclopentanone (12) are a case in point. Highly
David_M._Lemal
Study of the One- and Two-Photon Circular Dichroism of R-(+)-3-Methyl-Cyclopentanone". J. Chem. Phys. 128 (16): 164312. Bibcode:2008JChPh.128p4312R. doi:10
Two-photon_circular_dichroism
[4+3] and [3+2] cycloaddition reactions to form cycloheptenones and cyclopentanones, respectively. During [3+2] cycloaddition reactions, the substituent
Reductive dehalogenation of halo ketones
Reductive_dehalogenation_of_halo_ketones
Chemical compound
15227/orgsyn.050.0021. R. Noyori; Yokoyama, K.; Hayakawa, Y. (1988). "Cyclopentanones from α,α'-Dibromoketones and Enamines: 2,5-Dimethyl-3-Phenyl-2-Cyclopenten-1-one"
Diiron_nonacarbonyl
nickel catalyst and CO atmosphere could be transformed to the target cyclopentanone in decent yield. Hoffmann, H. M. R. (August 1969). "The Ene Reaction"
Metallo-ene_reaction
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