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74794-06-2

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74794-06-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74794-06-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,7,9 and 4 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 74794-06:
(7*7)+(6*4)+(5*7)+(4*9)+(3*4)+(2*0)+(1*6)=162
162 % 10 = 2
So 74794-06-2 is a valid CAS Registry Number.

74794-06-2Relevant articles and documents

Allylation of quinones bu allylic indium reagents

Araki, Shuki,Katsumura, Nobuhito,Butsugan, Yasuo

, p. 7 - 24 (2007/10/02)

Allylation of a variety of quinones by allylic indium sesquihalides was studied.Reactions of unsubstituted p-benzoquinone with allylindium, prenylindium, and geranylindium reagents gave, after oxidation with silver oxide, the corresponding allylated quinones in good yields.These reactions appear to proceed via 1,2-addition of the allylic indium reagents at the γ-carbon followed by sigmatropic rearrangement.Substituted quinones reacted with allylindium reagent giving excellent yields of allylquinols, whereas with prenylindium and geranylindium reagents, trisubstituted quinones gave diprenylcyclohexene-1,4-diones and 2,3-disubstituted quinones gave mixtures of prnylhydroquinones and diprenylcyclohexene-1,4-diones.In the prenylation of haloquinones, 1,2-addition, sigmatropic rearrangement, and elimination of indium(III) halide occurred in sequence yielding prenylquinones. 2-Hydroxy- and 2-methoxy-1,4-naphthoquinones gave α-addition products with prenylindium and cinnamylindium reagents.

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