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115755-20-9

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115755-20-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 115755-20-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,5,7,5 and 5 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 115755-20:
(8*1)+(7*1)+(6*5)+(5*7)+(4*5)+(3*5)+(2*2)+(1*0)=119
119 % 10 = 9
So 115755-20-9 is a valid CAS Registry Number.

115755-20-9Downstream Products

115755-20-9Relevant articles and documents

THIAZOLYLMETHYLENETRIPHENYLPHOSPHORANE AND ITS BENZO DERIVATIVE: STABLE AND PRACTICAL WITTIG REAGENTS FOR THE SYNTHESIS OF VINYLTHIAZOLES AND VINYLBENZOTHIAZOLES. TWO-CARBON HOMOLOGATION OF ALDEHYDES.

Dondoni, Alessandro,Fantin, Giancarlo,Fogagnolo, Marco,Medici, Alessandro,Pedrini, Paola

, p. 2021 - 2032 (2007/10/02)

The title thiazolyl phosphorane is a stable yet quite reactive Wittig-type reagent which uppon reaction with various aldehydes affords vinylthiazoles, mainly or exclusively as E-isomers, in very good yields.Also the benzothiazolyl phosphorane derivative, unlike a literature report, prove to react with aldehydes.Vinylthyazoles subjected to formyl deblocking from thiazole nucleous afford two-carbon homologated satured aldehydes.As an example, one of these vinylthiazoles, viz. the β-phenyl derivative 8f, proves to add n-butyl lithium cuprate to give after the formyl deblocking 3-phenylheptanal.

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