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606143-29-7

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606143-29-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 606143-29-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,0,6,1,4 and 3 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 606143-29:
(8*6)+(7*0)+(6*6)+(5*1)+(4*4)+(3*3)+(2*2)+(1*9)=127
127 % 10 = 7
So 606143-29-7 is a valid CAS Registry Number.

606143-29-7Relevant articles and documents

Asymmetric synthesis of 5-arylmethylpyrrolidin-2-ones and 2-arylmethylpyrrolidines

Lebrun, Stephane,Couture, Axel,Deniau, Eric,Grandclaudon, Pierre

, p. 2625 - 2632 (2003)

An efficient methodology for the enantioselective synthesis of 5-arylmethylpyrrolidin-2-ones and 2-arylmethylpyrrolidines has been devised. The key step is the stereoselective hydrogenation of the N-acylhydrazonium salts obtained from the corresponding arylmethylene hydrazides. These highly conjugated compounds are readily prepared by reacting a chiral succinimide with a variety of arylmethyl Grignard reagents. Removal of the chiral auxiliary and subsequent reduction complete the synthesis of the title compounds.

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