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137005-77-7

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137005-77-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 137005-77-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,0,0 and 5 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 137005-77:
(8*1)+(7*3)+(6*7)+(5*0)+(4*0)+(3*5)+(2*7)+(1*7)=107
107 % 10 = 7
So 137005-77-7 is a valid CAS Registry Number.

137005-77-7Relevant articles and documents

Reversal of Diastereofacial Selectivity in the Addition Reaction of Organometallics to Chiral Imines

Ukaji, Yutaka,Watai, Toshiyuki,Sumi, Takashi,Fujisawa, Tamotsu

, p. 1555 - 1558 (2007/10/02)

It was observed that diastereofacial selectivity in the addition reaction of organometallics to the chiral imines derived from (R)-2-methoxy-1-phenylethylamine was regulated under appropriate conditions; i. e., organolithium and organocerium reagents added from the re-face of the chiral imines selectively, while organocopper reagents attacked from the si-face.The utility of the present method was demonstrated in the enantioselective synthesis of solenopsin A.

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