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(2S)-ethyl 2-acetoxy-3-nitro-4-phenylbut-(3E)-enoate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

1268720-23-5

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1268720-23-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1268720-23-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,6,8,7,2 and 0 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1268720-23:
(9*1)+(8*2)+(7*6)+(6*8)+(5*7)+(4*2)+(3*0)+(2*2)+(1*3)=165
165 % 10 = 5
So 1268720-23-5 is a valid CAS Registry Number.

1268720-23-5Relevant academic research and scientific papers

Kinetic resolution of activated nitroallylic acetates with aldehydes and ketones through a conjugate addition-elimination SN2′ process

Jannapu Reddy, Raju,Lee, Pei-Hsun,Magar, Dhananjay R.,Chen, Jung-Hsuan,Chen, Kwunmin

experimental part, p. 353 - 365 (2012/02/04)

A unique organocatalytic kinetic resolution (KR) of nitroallylic acetates has been developed. A variety of racemic nitroallylic acetates (1a-n) were resolved with chiral enamines formed in situ from the reaction of aldehydes and ketones with organocatalys

Three-component organocascade kinetic resolution of racemic nitroallylic acetates via sequential iminium/enamine asymmetric catalysis

Roy, Suparna,Chen, Kwunmin

supporting information; experimental part, p. 2496 - 2499 (2012/07/13)

Nitroallylic acetates 1a-f have been kinetically resolved via an asymmetric three-component coupling that involves indoles, acrolein, and nitroolefin allylic acetates and is mediated by the chiral catalyst 2 (5 mol %). The reactions proceed via iminium/enamine cascade catalysis. Both recovered starting substrates and reaction products are typically obtained in high chemical yield and in good to excellent enantiopurity (79-95% ee for 1a-f and 83-99% ee for 3a-n). For the first time, a highly efficient three-component, organocascade kinetic resolution has been demonstrated.

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