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136121-27-2

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136121-27-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 136121-27-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,1,2 and 1 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 136121-27:
(8*1)+(7*3)+(6*6)+(5*1)+(4*2)+(3*1)+(2*2)+(1*7)=92
92 % 10 = 2
So 136121-27-2 is a valid CAS Registry Number.

136121-27-2Relevant articles and documents

1-Chloroalkyl p-Tolyl Sulfoxides as Acetylide Anion Equivalent: A Novel Synthesis Including Asymmetric Synthesis of Propargylic Alcohols from Carbonyl Compounds

Satoh, Tsuyoshi,Hayashi, Yasumasa,Yamakawa, Koji

, p. 2153 - 2158 (2007/10/02)

Addition of the carbanion of 1-chloroalkyl p-tolyl sulfoxide to carbonyl compounds gave the adducts, which were heated in refluxing toluene or xylene to give vinyl chlorides in high overall yield.Dehydrochlorination of the vinyl chlorides with excess n-BuLi afforded propargylic alcohols in high yields.Asymmetric synthesis of both enantiomers of the propargylic alcohols was realized using optically active 1-chloroalkyl p-tolyl sulfoxide and aldehyde.

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