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109787-29-3

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109787-29-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 109787-29-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,7,8 and 7 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 109787-29:
(8*1)+(7*0)+(6*9)+(5*7)+(4*8)+(3*7)+(2*2)+(1*9)=163
163 % 10 = 3
So 109787-29-3 is a valid CAS Registry Number.

109787-29-3Relevant articles and documents

Studies on the Addition of Allyl Oxides to Sulfonylallenes. Preparation of Highly Substituted Allyl Vinyl Ethers for Carbanionic Claisen Rearrangements

Denmark, Scott E.,Harmata, Michael A.,White, Kathleen S.

, p. 4031 - 4042 (1987)

Thirty-five allyl vinyl ethers bearing an arylsulfonyl anion-stabilizing group have been prepared by addition of allylic alkoxides to (arylsulfonyl)allenes.The allyl vinyl ethers are produced as either β,γ-unsaturated or α,β-unsaturated sulfones depending upon the substitution pattern of the allene and the reaction conditions.A wide variety of substitution patterns are available by using this method.Factors that control the position and stereochemistry of the vinyl ether double bond are discussed.

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