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940290-40-4

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940290-40-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 940290-40-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,4,0,2,9 and 0 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 940290-40:
(8*9)+(7*4)+(6*0)+(5*2)+(4*9)+(3*0)+(2*4)+(1*0)=154
154 % 10 = 4
So 940290-40-4 is a valid CAS Registry Number.

940290-40-4Relevant articles and documents

Copper-Catalyzed Addition of Alkylboranes to Iminoacetates: Access to α-Alkyl Branched α-Amino Acids

Xiao, Xinsheng,Zhang, Wei,Lu, Xiaoxia,Deng, Yuanfu,Jiang, Huangfeng,Zeng, Wei

, p. 2497 - 2509 (2016/08/16)

A copper(I)-catalyzed addition of alkylborane reagents to α-iminoacetates has been developed to assemble both acyclic and cyclic α-branched α-amino carboxylic acid derivatives in good yields. A wide variety of unactivated alkenes are well tolerated in this transformation. (Figure presented.).

Rapid access to α-alkoxy and α-amino acid derivatives through safe continuous-flow generation of diazoesters

Bartrum, Hannah E.,Blakemore, David C.,Moody, Christopher J.,Hayes, Christopher J.

, p. 9586 - 9589 (2011/10/08)

Microreactors: A highly efficient continuous-flow process has been developed for the synthesis of diazoesters from arylsulfonylhydrazones by means of in-flow Bamford-Stevens reactions. Furthermore, a range of α-alkoxy and α-amino acid derivatives have bee

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