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577973-96-7

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577973-96-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 577973-96-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,7,7,9,7 and 3 respectively; the second part has 2 digits, 9 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 577973-96:
(8*5)+(7*7)+(6*7)+(5*9)+(4*7)+(3*3)+(2*9)+(1*6)=237
237 % 10 = 7
So 577973-96-7 is a valid CAS Registry Number.

577973-96-7Relevant articles and documents

Catalytic, asymmetric Mannich-type reactions of α-imino esters bearing readily removable substituents on nitrogen

Nakamura, Yoshitaka,Matsubara, Ryosuke,Kiyohara, Hiroshi,Kobayashi, Shu

, p. 2481 - 2484 (2003)

(Matrix presented) Catalytic, enantioselective Mannich-type reactions of α-imino esters bearing readily removable substituents on nitrogen are described. Several N-carbamate-protected α-imino esters, which are readily prepared from 2-bromoglycine esters using a polymer-supported amine, reacted with silicon enolates to afford the desired adducts in high yields with high enantioselectivity using a copper(II)-diamine complex. Easy deprotection of the product amine and transformation to free o-amino acid derivatives have also been demonstrated.

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