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134022-43-8

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134022-43-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 134022-43-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,0,2 and 2 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 134022-43:
(8*1)+(7*3)+(6*4)+(5*0)+(4*2)+(3*2)+(2*4)+(1*3)=78
78 % 10 = 8
So 134022-43-8 is a valid CAS Registry Number.

134022-43-8Downstream Products

134022-43-8Relevant articles and documents

Rapid and Ecofriendly Esterification of Alcohols with 2-Acylpyridazinones

Kim, Bo Ram,Sung, Gi Hyeon,Ryu, Ki Eun,Kim, Jeum-Jong,Yoon, Yong-Jin

, p. 3410 - 3414 (2014/01/06)

Atom-economical esterification is of great importance in green chemistry. In this work, we demonstrated the catalyst and additive free esterification of alcohols by their reaction with 2-acyl-4,5-dichloropyridazin-3(2H)- ones without solvent at 100 oC. Aliphatic and aromatic alcohols were converted into the corresponding esters in good to excellent yields. It is noteworthy that the reaction is solvent-free, atom-economic, easy-workup, and rapid and that the process is inexpensive.

NHC-iron-catalyzed aerobic oxidative aromatic esterification of aldehydes using boronic acids

Rosa, Joao N.,Reddy, R. Sudarshan,Candeias, Nuno R.,Cal, Pedro M. S. D.,Gois, Pedro M. P.

supporting information; experimental part, p. 2686 - 2689 (2010/09/03)

(Figure presented) NHC-iron complexes prepared in situ very efficiently afforded benzoates via the aerobic oxidative aromatic esterification of aldehydes with boronic acids. This method uses equimolar amounts of both the aldehyde and the boronic acid allo

Electrochemical generation and reactions of acyloxytriphenylphosphonium ions

Ohmori, Hidenobu,Maeda, Hatsuo,Kikuoka, Masayuki,Maki, Toshihide,Masui, Masaichiro

, p. 767 - 776 (2007/10/02)

Constant-current electrolysis, in an undivided cell, of Ph3P in the presence of a carboxylic acid in CH2Cl2 containing 2,6-lutidinium perchlorate as the supporting electrolyte was shown to generate the corresponding acyloxyphosphonium ion, Ph3P+-OCOR, which was converted in situ to esters, amides, and β-lactams under mild conditions.

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