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methyl N-<3-(1'-ethoxycarbonyl-2'-oxocyclohexyl)-propylidine>-tryptophanate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

237400-81-6

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237400-81-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 237400-81-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,3,7,4,0 and 0 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 237400-81:
(8*2)+(7*3)+(6*7)+(5*4)+(4*0)+(3*0)+(2*8)+(1*1)=116
116 % 10 = 6
So 237400-81-6 is a valid CAS Registry Number.

237400-81-6Relevant articles and documents

Sequential 1,3-dipolar cycloaddition-Pictet-Spengler spirocyclisation reactions of metallo-azomethine ylides from aliphatic aldimines

Grigg, Ronald,Thornton-Pett, Mark,Yoganathan, Gnanamoly

, p. 8129 - 8140 (1999)

Combinations of imine → azomethine ylide → cycloaddition cascades with acid catalysed Pictet-Spengler spirocyclisation occurs regio- and stereoselectively to afford novel polycyclic spirocycles containing three new rings and five stereocentres.

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