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107183-92-6

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107183-92-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 107183-92-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,7,1,8 and 3 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 107183-92:
(8*1)+(7*0)+(6*7)+(5*1)+(4*8)+(3*3)+(2*9)+(1*2)=116
116 % 10 = 6
So 107183-92-6 is a valid CAS Registry Number.

107183-92-6Relevant articles and documents

Application du rearrangement de Claisen aux -1 alcen-1(Z) ols-3. Syntheses d'alcadien-2(E),4(E) oates d'ethyle et de (p.toluenesulfonylamino)-5 alcen-3(E) ols-1

Lorne, Robert,Julia, Sylvestre A.

, p. 317 - 324 (2007/10/02)

The acid catalysed reaction between 1--1(Z)-alken-3-ols 1 and ethyl orthoacetate takes place via a Claisen rearrangement to give stereoselectively the ethyl-3-(1',1'-dimethylethyl)thio-4(E)-alkenoates 2a, b, c.Oxone oxidation converts these sulfide-esters 2 into the corresponding sulfone-esters 6a, b, c, which on treatment with sodium carbonate give the ethyl 2(E),4(E) alkadienoates 7a, b, c.Treatment of the sulfide-esters 2 with chloramine T yields compounds 10a, b, c through a sigmatropic rearrangement of the intermediate N-tosyl-sulfimines.These compounds 10 are reduced by DIBAL-H to the 5-(p.toluenesulfonylamino)-3(E) alken-1-ols 11a, b, c.

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