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449815-31-0

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449815-31-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 449815-31-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,9,8,1 and 5 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 449815-31:
(8*4)+(7*4)+(6*9)+(5*8)+(4*1)+(3*5)+(2*3)+(1*1)=180
180 % 10 = 0
So 449815-31-0 is a valid CAS Registry Number.

449815-31-0Downstream Products

449815-31-0Relevant articles and documents

Rearrangement of epoxynitriles: A convenient homologation of acyclic and cyclic ketones to carboxylic acids

Badham, Neil F.,Mendelson, Wilford L.,Allen, Andrew,Diederich, Ann M.,Eggleston, Drake S.,Filan, John J.,Freyer, Alan J.,Killmer Jr., Lewis B.,Kowalski, Conrad J.,Liu, Li,Novack, Vance J.,Vogt, Frederick G.,Webb, Kevin S.,Yang, Jennifer

, p. 5440 - 5443 (2007/10/03)

A convenient two-step homologation of both aliphatic and aromatic ketones to the corresponding carboxylic acid has been developed. First ketones were converted to epoxynitriles with the Darzens reaction. Second, a Lewis acid mediated rearrangement of these epoxynitriles with lithium bromide was achieved to give homologated secondary alkanoic acids (as well as aryl-alkanoic) in good yields. The mechanism and the scope of the rearrangement reaction were investigated. This strategy constitutes a two- step homologation of ketones to secondary carboxylic acids.

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