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124021-36-9

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124021-36-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 124021-36-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,4,0,2 and 1 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 124021-36:
(8*1)+(7*2)+(6*4)+(5*0)+(4*2)+(3*1)+(2*3)+(1*6)=69
69 % 10 = 9
So 124021-36-9 is a valid CAS Registry Number.

124021-36-9Downstream Products

124021-36-9Relevant articles and documents

Allylic Carboxylations and Lactonization Using Benzoquinone and Hydrogen Peroxide or tert-Butyl Hydroperoxide as Oxidants

Akermark, Bjoern,Larsson, E. Magnus,Oslob, Johan D.

, p. 5729 - 5733 (1994)

Two new systems have been developed for catalytic carboxylation of alkenes.Both use palladium(II) as catalyst and benzoquinone as cocatalyst.In the first hydrogen peroxide was used as oxidant in acetic acid solution.Alkenes such as cyclohexene and 5-decene were converted cleanly to allylic acetates, but with 1-decene mainly the methyl ketone was formed.A diene such as 1,3-cyclohexadiene gave the diacetate while cis-1,2-divinylcyclohexane gave the cyclized monoacetate.In the second system, tert-butyl hydroperoxide was used as oxidant, permitting a wider choice of solvents and nucleophiles.Intramolecular reaction to lactones was possible in addition to allylic addition of acids such as benzoic, pivalic, and (S)-O-acetylmandelic acid.

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