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21481-86-7

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21481-86-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21481-86-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,4,8 and 1 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 21481-86:
(7*2)+(6*1)+(5*4)+(4*8)+(3*1)+(2*8)+(1*6)=97
97 % 10 = 7
So 21481-86-7 is a valid CAS Registry Number.

21481-86-7Relevant articles and documents

Palladium-catalyzed asymmetric hydrogenation of 2-aryl cyclic ketones for the synthesis oftranscycloalkanols through dynamic kinetic resolution under acidic conditions

Li, Xiang,Zhao, Zi-Biao,Chen, Mu-Wang,Wu, Bo,Wang, Han,Yu, Chang-Bin,Zhou, Yong-Gui

supporting information, p. 5815 - 5818 (2020/06/03)

The first efficient palladium-catalyzed asymmetric hydrogenation of 2-aryl cyclic ketones has been described through dynamic kinetic resolution under acidic conditions, providing a facile access to chiraltranscycloalkanol derivatives with excellent enantioselectivities.

Copper(II)-catalyzed meta-selective direct arylation of α-aryl carbonyl compounds

Duong, Hung A.,Gilligan, Ruth E.,Cooke, Michael L.,Phipps, Robert J.,Gaunt, Matthew J.

supporting information; experimental part, p. 463 - 466 (2011/03/16)

Strong competition: A method for the meta-selective arylation of the highly versatile α-aryl carbonyl motif using diaryliodonium salts is described. In this CuII-catalyzed process the remote carbonyl group is capable of overpowering even strongly para-directing functionalities to form the elusive meta-products (see scheme). Remarkably, the arylation process can also operate under metal-free conditions.

Enzymatic resolution of trans-2-arylcyclohexan-1-ols using crude chicken liver esterase (CCLE) as biocatalyst

Basavaiah,Rao

, p. 223 - 234 (2007/10/02)

Homochiral trans-2-arylcyclohexan-1-ols were synthesized via crude chicken liver esterase (CCLE) mediated enantioselective hydrolysis of the corresponding racemic acetates.

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