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Ethanone, 1-(2,2-dimethylcyclopentyl)-, also known as 2,2-dimethyl-1-cyclopenten-1-yl methyl ketone or 2,2-dimethyl-1-cyclopentenyl methyl ketone, is an organic compound with the chemical formula C9H16O. It is a colorless liquid with a molecular weight of 140.22 g/mol. Ethanone, 1-(2,2-dimethylcyclopentyl)- is characterized by a cyclopentyl ring with two methyl groups at the 2-position and a methyl ketone group attached to the 1-position. It is used as a synthetic intermediate in the production of various chemicals and pharmaceuticals, particularly in the synthesis of fragrances and flavorings. Due to its reactivity and functional groups, it can participate in various chemical reactions, such as aldol condensation, Michael addition, and nucleophilic acyl substitution.

3664-75-3

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3664-75-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 3664-75-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,6,6 and 4 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 3664-75:
(6*3)+(5*6)+(4*6)+(3*4)+(2*7)+(1*5)=103
103 % 10 = 3
So 3664-75-3 is a valid CAS Registry Number.

3664-75-3SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 15, 2017

Revision Date: Aug 15, 2017

1.Identification

1.1 GHS Product identifier

Product name 1-(2,2-dimethylcyclopentyl)ethanone

1.2 Other means of identification

Product number -
Other names 2,2-Dimethyl-1-acetyl-cyclopentan

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:3664-75-3 SDS

3664-75-3Relevant academic research and scientific papers

Copper-Catalyzed Conjugate Addition of Trimethylaluminium to α,β-Unsaturated Ketones

Kabbara, Jazid,Flemming, Steffen,Nickisch, Klaus,Neh, Harribert,Westermann, Juergen

, p. 1489 - 1494 (2007/10/02)

The conjugate methylation of α,β-unsaturated ketones with trimethylaluminium occurs smoothly in a very simple procedure under the catalytic CuI salts.Scope and limitations of this process as well as the influence of solvent and catalyst on the kinetics were studied.In addition, the effect of chlorotrimethylsilane as an additive was investigated.Attack on the carbonyl group in 1,2-fashion could not be observed under the reaction conditions.- Key Words: Conjugate alkylation / Trimethylaluminium / Copper catalysis

REACTIONS OF STOICHIOMETRIC HIGHER ORDER, MIXED LITHIO MAGNESIO ORGANOCUPRATES

Lipshutz, Bruce H.,Parker, David A.,Nguyen, Sam L.,McCarthy, Keith E.,Barton, John C.,et al.

, p. 2873 - 2880 (2007/10/02)

Novel higher order cuprates, R(2-thienyl)Cu(CN)LiMgBr (2), are prepared from the 1:1:1 combination of CuCN, 2-lithiothiophene and RMgX.Reactions of various members of this new class of reagents are described, including substitution and conjugate addition processes, where the ligand derived from the Grignard reagent is selectively transferred.The effects of added BF3*Et2O are discussed.Some comparison reactions with the corresponding lower order reagents, RCu(CN)MgBr, have also been carried out.Evidence is presented suggesting that species 2, unlike their dilithio analogs, are not discrete.

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