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118908-08-0

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118908-08-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 118908-08-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,8,9,0 and 8 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 118908-08:
(8*1)+(7*1)+(6*8)+(5*9)+(4*0)+(3*8)+(2*0)+(1*8)=140
140 % 10 = 0
So 118908-08-0 is a valid CAS Registry Number.

118908-08-0Upstream product

118908-08-0Downstream Products

118908-08-0Relevant articles and documents

BF3-MEDIATED REACTION OF A SULPHONE WITH ALDEHYDES. A METHOD FOR STEREOSPECIFIC CONSTRUCTION OF PROSTAGLANDIN ω-CHAIN

Achmatowicz, B.,Baranowska, E.,Daniewski, A. R.,Pankowski, J.,Wicha, J.

, p. 4989 - 4998 (2007/10/02)

A new method for stereospecific construction of the allylic alcohol moiety of prostaglandins, based on application of optically active α-hydroxy aldehydes, is described.In the presence of BF3*Et2O, lithiated sulphones 1 prepared from Corey aldehyde, and carbonyl compounds 2 give the corresponding adducts 3 in moderate to excellent yields, while in the absence of the Lewis acid either no products or only their traces were formed.The addition products 3, in the form of benzoates, mesylates or free alcohols, were subjected to reductive elimination by means of sodium amalgam to give the alkenes 4.Compounds 4d and 4f were transformed into racemic and natural PGF2α, respectively, in line with the known method.

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