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349547-99-5

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349547-99-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 349547-99-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,9,5,4 and 7 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 349547-99:
(8*3)+(7*4)+(6*9)+(5*5)+(4*4)+(3*7)+(2*9)+(1*9)=195
195 % 10 = 5
So 349547-99-5 is a valid CAS Registry Number.

349547-99-5Upstream product

349547-99-5Relevant articles and documents

A convenient synthesis of racemic and optically active 1-aza-1,3-dienes derived from γ-amino esters: Reduction to α,β-unsaturated and saturated γ-amino acid derivatives

Palacios, Francisco,Aparicio, Domitila,García, Jesús,Rodríguez, Encina,Fernández-Acebes, Alvaro

, p. 3131 - 3141 (2001)

A simple synthesis of racemic and optically active 1-azadienes derived from γ-amino esters by olefination reaction of alkyl glyoxylates and functionalized phosphonium salts or phosphine oxides is reported. Selective reduction of these 1-azadienes with hydrides yields (E)-γ-amino-α,β-unsaturated esters. A simple procedure for the preparation of saturated γ-amino acids and γ-amino esters from the previously synthesized vinylogous amino esters is also described.

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