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887617-78-9

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887617-78-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 887617-78-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,8,7,6,1 and 7 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 887617-78:
(8*8)+(7*8)+(6*7)+(5*6)+(4*1)+(3*7)+(2*7)+(1*8)=239
239 % 10 = 9
So 887617-78-9 is a valid CAS Registry Number.

887617-78-9Downstream Products

887617-78-9Relevant articles and documents

Highly homogeneous stereocontrolled construction of quaternary hydroxyesters by addition of dimethylzinc to α-ketoesters promoted by chiral perhydrobenzoxazines and B(OEt)3

Infante, Rebeca,Nieto, Javier,Andres, Celia

supporting information; experimental part, p. 4375 - 4379 (2012/05/20)

A highly efficient enantioselective addition of Me2Zn to α-ketoesters, assisted by a chiral perhydro-1,3-benzoxazine ligand, is described. This novel catalytic system offers homogeneous elevated enantioselectivities in the preparation of α-hydroxyesters that bear a quaternary stereocenter, with a minor dependence on electronic and steric effects when aromatic, heteroaromatic, or aliphatic α-ketoesters are employed. The catalyst can be recovered and reused without loss of activity.

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