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77515-94-7

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77515-94-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77515-94-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,5,1 and 5 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 77515-94:
(7*7)+(6*7)+(5*5)+(4*1)+(3*5)+(2*9)+(1*4)=157
157 % 10 = 7
So 77515-94-7 is a valid CAS Registry Number.

77515-94-7Downstream Products

77515-94-7Relevant articles and documents

Stereochemistry of the Michael Addition of N,N-Disubstituted Amide and Thioamide Enolates to α,β-Unsaturated Ketones

Oare, David A.,Henderson, Mark A.,Sanner, Mark A.,Heathcock, Clayton H.

, p. 132 - 157 (2007/10/02)

A systematic study of the regio- and diastereoselectivity of the kinetic Michael addition of amide and thioamide enolates to a series of α,β-unsaturated ketones has been carried out.Factors that influence the diastereo- and regiochemical outcome of the reaction include the substitution pattern of the enone and enolate, the enolate counterion, and the solvent.Numerous examples of high selectivity have been discovered.In a number of examples, either the syn or the anti addition products can be obtained by varying the nature of the solvent, donor atom, and/or counterion.These results have correlated in terms of a coherent transition-state model.

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