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142981-58-6

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142981-58-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 142981-58-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,9,8 and 1 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 142981-58:
(8*1)+(7*4)+(6*2)+(5*9)+(4*8)+(3*1)+(2*5)+(1*8)=146
146 % 10 = 6
So 142981-58-6 is a valid CAS Registry Number.

142981-58-6Relevant articles and documents

Electrochemical Oxidation of Acylsilanes and Their Tosylhydrazones

Yoshida, Jun-ichi,Itoh, Masanori,Matsunaga, Shin-ichiro,Isoe, Sachihiko

, p. 4877 - 4882 (1992)

Oxidation potentials of acylsilanes were found to be much less positive than those of ketones and aldehydes.The effect of silicon is attributed to the rise of the HOMO level by the interaction between the C-Si ? orbital and the nonbonding p orbital of the carbonyl oxygen which in turn favors the electron transfer.Preparative electrochemical oxidation of acylsilanes proceeded smoothly, giving rise to facile cleavage of the C-Si bond and the introduction of nucleophiles such as alcohols, water, and carbamates onto the carbonyl carbon.Electrochemical properties of tosylhydrazones of acylsilanes were also investigated.A decrease in oxidation potential of tosylhydrazones caused by silyl substitution was found to be smaller than that for carbonyl compounds.Preparative electrochemical oxidation of tosylhydrazones of acylsilanes gave the corresponding nitriles with consumption of a catalytic amount of electricity.

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