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145904-34-3

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145904-34-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 145904-34-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,5,9,0 and 4 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 145904-34:
(8*1)+(7*4)+(6*5)+(5*9)+(4*0)+(3*4)+(2*3)+(1*4)=133
133 % 10 = 3
So 145904-34-3 is a valid CAS Registry Number.

145904-34-3Relevant articles and documents

A Novel Addition-Rearrangement of O-(1-Benzotriazolylaklyl)oximes with Organolithium Reagents. Convenient Non-oxidative Conversions of Aldehydes into Amides

Katritzky, Alan R.,Jiang, Jinlong,Greenhill, John V.,Steel, Peter J.

, p. 3055 - 3060 (2007/10/02)

Condensation of an aldehyde, an oxime and benzotriazole gives an O-(1-benzotriazolylalkyl)oxime which undergoes an addition-rearrangement on treatment with an organolithium reagent.This reaction provides a novel non-oxidative method for the transformation of aldehydes into amides which has afforded several new N-monosubstituted amides with crowded structures.Grignard reactions of the O-(1-benzotriazolylalkyl)oximes give alcohols as the major products.

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