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175349-37-8

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175349-37-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 175349-37-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,5,3,4 and 9 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 175349-37:
(8*1)+(7*7)+(6*5)+(5*3)+(4*4)+(3*9)+(2*3)+(1*7)=158
158 % 10 = 8
So 175349-37-8 is a valid CAS Registry Number.

175349-37-8Relevant articles and documents

A method for generation of α-halo carbanions (carbenoids) from aryl α-haloalkyl sulfoxides with alkylmetals

Satoh, Tsuyoshi,Takano, Koji

, p. 2349 - 2358 (1996)

Ligand exchange reaction of simple aryl α-haloalkyl sulfoxides with alkyllithium and ethylmagnesium halide at low temperature was investigated. On treatment of aryl α-haloalkyl sulfoxide with n-BuLi, t-BuLi, or EtMgX exclusively sulfur-alkyl bond-cleavage took place to afford α-halo carbanion (carbenoid). When this reaction was carried out without a proton source, the intermediate α-halo carbanion decomposed to give olefines in good yield. The ligand exchange reaction of sulfoxide was found to be very fast and the reaction could be carried out with a proton or a deuterium source (internal quench) to afford alkyl halide. This procedure offers a new method for preparing α-deuterated) halides (the halogen is F, Cl, or Br).

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