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Benzene, 1-chloro-3-(1-cyclopenten-1-yl)-, also known as 1-chloro-3-cyclopentenylbenzene, is an organic compound with the molecular formula C11H11Cl. It is a colorless to pale yellow liquid with a strong, pungent odor. This chemical is characterized by the presence of a benzene ring with a chloro group at the 1-position and a cyclopentenyl group at the 3-position. It is used as an intermediate in the synthesis of various pharmaceuticals, agrochemicals, and other specialty chemicals. Due to its reactivity and potential health risks, it is important to handle Benzene, 1-chloro-3-(1-cyclopenten-1-yl)- with proper safety measures and in accordance with relevant regulations.

2626-31-5

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2626-31-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 2626-31-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,6,2 and 6 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 2626-31:
(6*2)+(5*6)+(4*2)+(3*6)+(2*3)+(1*1)=75
75 % 10 = 5
So 2626-31-5 is a valid CAS Registry Number.

2626-31-5Relevant academic research and scientific papers

Regio- and enantioselective Baeyer-Villiger oxidation: Kinetic resolution of racemic 2-substituted cyclopentanones

Zhou, Lin,Liu, Xiaohua,Ji, Jie,Zhang, Yuheng,Wu, Wangbin,Liu, Yangbin,Lin, Lili,Feng, Xiaoming

supporting information, p. 3938 - 3941 (2014/08/18)

A kinetic resolution of racemic 2-substituted cyclopentanones via highly regio- and enantioselective Baeyer-Villiger oxidation has been successfully developed. The reaction could afford the normal 6-substituted δ-lactones in up to 98% ee and >19/1 regioselectivity. Meanwhile, the unreacted ketones were recovered in excellent ee values (up to 98%). It represents the best results of the kinetic resolution of racemic 2-substituted cyclopentanones via nonenzymic asymmetric BV oxidation.

REACTION OF DIAZONIUM SALTS WITH TRANSITION METALS-III. PALLADIUM(0)-CATALYZED ARYLATION OF UNSATURATED COMPOUNDS WITH ARENEDIAZONIUM SALTS

Kikukawa, K.,Nagira, K.,Wada, F.,Matsuda, T.

, p. 31 - 36 (2007/10/02)

Palladium (0) catalyzed reactions of arenediazonium salts for arylation of aliphatic and cyclic olefins and allylic alcohols, styrene and ethyl acrylate were studied.Effect of the olefinic compounds and other reaction variables on the arylation were presented.Arylpalladium species was proposed as the most plausible intermediated in this reaction.

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