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145663-77-0

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145663-77-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 145663-77-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,5,6,6 and 3 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 145663-77:
(8*1)+(7*4)+(6*5)+(5*6)+(4*6)+(3*3)+(2*7)+(1*7)=150
150 % 10 = 0
So 145663-77-0 is a valid CAS Registry Number.

145663-77-0Relevant articles and documents

Generation of the α-Sulfinyl Carbenoid from α-Chloro Sulfoxides: A New Method for One-Carbon Homologation of Ketones to α-Sulfinyl Ketones

Satoh, Tsuyoshi,Hayashi, Yasumasa,Mizu, Yasuhiro,Yamakawa, Koji

, p. 1412 - 1418 (2007/10/02)

Treatment of 1-chloroalkyl phenyl sulfoxides with a base gave carbenoids rather than free carbenes.The carbenoids were successfully used in a new method for homologation of ketones to α-sulfinyl ketones.Treatment of the carbanion of chloromethyl phenyl sulfoxide with ketones gave the adducts, α-chloro β-hydroxy sulfoxides, in nearly quantitative yields. the adducts were treated with excess lithium diisopropylamide to give one-carbon homologated α-sulfinyl ketones via α-sulfinyl β-oxido carbenoids in moderate to good yields.This type of reaction was found not to occur with the corresponding sulfones.

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