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74032-27-2

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74032-27-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74032-27-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,0,3 and 2 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 74032-27:
(7*7)+(6*4)+(5*0)+(4*3)+(3*2)+(2*2)+(1*7)=102
102 % 10 = 2
So 74032-27-2 is a valid CAS Registry Number.

74032-27-2Downstream Products

74032-27-2Relevant articles and documents

Reaction of 1-Lithio-1-arylthio(or alkylthio)methyltrimethylsilane with Acid Derivatives. A Novel Synthesis of Functionalized Vinyl Sulfides

Agawa, Toshio,Ishikawa, Minori,Komatsu, Mitsuo,Ohshiro, Yoshiki

, p. 1205 - 1208 (2007/10/02)

Reactions of 1-lithio-1-phenylthiomethyl- (1a) and 1-lithio-1-methylthiomethyltrimethylsilane (1b) with amides, an ester, acid anhydrides, a urea, and a carbonate are described which provide useful routes to functionalized vinyl sulfides.The reaction of 1 with amides gave β-functionalized vinyl sulfides, 1-dialkylamino-2-phenylthio (or methylthio)ethylenes, in 40-95percent yields and the reaction could be extended to the sulfonyl derivatives of 1 to afford 1-dialkylamino-2-phenylsulfonyl(or methylsulfonyl)ethylenes.Although ethyl benzoate and some acid anhydrides were not good substrates for this reaction, tetramethylurea and diethyl carbonate gave α-functionalized vinyl sulfides, 1-amidovinyl- and 1-(ethoxycarbonyl)vinyl sulfides, in moderate yields when treated with 1a followed by addition of benzaldehyde.

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