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141987-52-2

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141987-52-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 141987-52-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,1,9,8 and 7 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 141987-52:
(8*1)+(7*4)+(6*1)+(5*9)+(4*8)+(3*7)+(2*5)+(1*2)=152
152 % 10 = 2
So 141987-52-2 is a valid CAS Registry Number.

141987-52-2Relevant articles and documents

A facile and convenient chemoenzymatic synthesis of optically active O-(4-methoxyphenyl)-glycidol and 1,2-diacyl-sn-glycerol

Kamal, Ahmed,Sandbhor, Mahendra,Shaik, Ahmad Ali,Malik, M. Shaheer

, p. 1855 - 1859 (2007/10/03)

A convenient preparation of the (R)- and (S)-enantiomers of O-(4-methoxyphenyl)-glycidol by a one-pot reduction of ketone 3 and in situ lipase mediated resolution is described. Activated moist aluminium oxide in the presence of Pseudomonas cepacia lipase immobilized on ceramic particles (PS-C) has been found effective for the transesterification leading to a high degree of enantioselectivity. These chiral glycidols were further used as a chiral precursor for the synthesis of biologically important 1,2-O-diacyl-sn-glycerol under mild reaction conditions. The present method is facile for the synthesis of chiral glycidols in high enantioselectivity when compared to the previously reported methods.

Enzyme Assisted Preparation of Enantiomerically Pure β-Adrenergic Blockers III. Optically Active Chlorohydrin Derivatives and Their Conversion

Ader, Ulrich,Schneider, Manfred P.

, p. 521 - 524 (2007/10/02)

Optical active chlorohydrin derivatives 2a-m and 3a-m of both enantiomeric series were prepared via both enzymatic hydrolyses and acyltransfer reactions catalysed by a highly selective lipase from Pseudomonas sp..The resulting building blocks were further transformed into the corresponding β-blockers of high enantiomeric purity.

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