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56280-66-1

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56280-66-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 56280-66-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,2,8 and 0 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 56280-66:
(7*5)+(6*6)+(5*2)+(4*8)+(3*0)+(2*6)+(1*6)=131
131 % 10 = 1
So 56280-66-1 is a valid CAS Registry Number.

56280-66-1Relevant articles and documents

Quaternary carbon stereogenic centers through copper-catalyzed enantioselective allylic substitutions with readily accessible aryl- or heteroaryllithium reagents and aluminum chlorides

Gao, Fang,Lee, Yunmi,Mandai, Kyoko,Hoveyda, Amir H.

, p. 8370 - 8374 (2010/12/25)

The case of the notorious aryls is solved: The first efficient catalytic and enantioselective method for allylic substitutions that furnish quaternary carbon stereogenic centers by additions of aryl- or heteroarylmetals is reported (see scheme). Highly site- and enantioselective processes begin with readily available organolithium reagents.

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