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956101-42-1

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956101-42-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 956101-42-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,5,6,1,0 and 1 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 956101-42:
(8*9)+(7*5)+(6*6)+(5*1)+(4*0)+(3*1)+(2*4)+(1*2)=161
161 % 10 = 1
So 956101-42-1 is a valid CAS Registry Number.

956101-42-1Relevant articles and documents

Iridium(I)-catalyzed regio- and enantioselective allylic amidation

Singh, Om V.,Han, Hyunsoo

, p. 7094 - 7098 (2008/03/11)

Ir(I)-catalyzed intermolecular allylic amidation of ethyl allyl carbonates with soft nitrogen nucleophiles under completely 'salt-free' conditions is described. A combination of [Ir(COD)Cl]2, a chiral phosphoramidite ligand L*, and DBU as a base in THF effects the reaction. The reaction appears to be quite general, accommodating a wide variety of R-groups and soft nitrogen nucleophiles, and proceeds with excellent regio- and enantioselectivities to afford the branched N-protected allylic amines. The developed reaction was conveniently utilized in the asymmetric synthesis of N-Boc protected α- and β-amino acids as well as (-)-cytoxazone.

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