871917-92-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 871917-92-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,1,9,1 and 7 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 871917-92:
(8*8)+(7*7)+(6*1)+(5*9)+(4*1)+(3*7)+(2*9)+(1*2)=209
209 % 10 = 9
So 871917-92-9 is a valid CAS Registry Number.
871917-92-9Relevant articles and documents
PROCESS FOR PREPARING 2-OXO-1-PYRROLIDINE DERIVATIVES BY INTRAMOLECULAR ALLYLATION
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Page/Page column 12, (2008/06/13)
The present invention relates to a new process for preparing 2-oxo-1-pyrrolidine derivatives of general formula (I), comprising the cyclisation of an intermediate of general formula (II) wherein the substituents are as defined in the specification.
