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1026576-66-8

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1026576-66-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1026576-66-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,6,5,7 and 6 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1026576-66:
(9*1)+(8*0)+(7*2)+(6*6)+(5*5)+(4*7)+(3*6)+(2*6)+(1*6)=148
148 % 10 = 8
So 1026576-66-8 is a valid CAS Registry Number.

1026576-66-8Relevant articles and documents

Synthesis of γ- and δ-Lactones by Free-Radical Annelation of Se-Phenyl Selenocarbonates

Bachi, Mario D.,Bosch, Eric

, p. 4696 - 4705 (2007/10/02)

A general method for the synthesis of γ- and δ-lactones through the intramolecular addition of alkoxycarbonyl radicals, formed by reaction of Se-phenylselenocarbonates with n-Bu3SnH, onto carbon-carbon multiple bonds is described.This free-radical cyclization is characterized by high regioselectivity favoring exo addition and by a high ratio of cyclization to reduction.Monocyclic, fused bicyclic, and spirocyclic lactones are formed in good to excellent yield.Use of allyltri-n-butyltin as a chain-transfer agent in the place of n-Bu3SnH affords the corresponding 3-butenyl lactones.

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