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(S)-(+)-2-hydroxymethyl-3,3-dimethyl-4-phenyl-2-azetidinone is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

145694-42-4

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145694-42-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 145694-42-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,5,6,9 and 4 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 145694-42:
(8*1)+(7*4)+(6*5)+(5*6)+(4*9)+(3*4)+(2*4)+(1*2)=154
154 % 10 = 4
So 145694-42-4 is a valid CAS Registry Number.

145694-42-4Relevant academic research and scientific papers

Facile enzymatic preparation for enantiomeric β-lactams

Nagai,Shiozawa,Achiwa,Terao

, p. 2227 - 2229 (1992)

Optically active β-lactams were obtained conveniently by lipase-catalyzed enantioselective hydrolysis of 1-acyloxymethyl-2-azetidinones and esterification of 1-hydroxymethyl-3,3-dimethyl-2-azetidinone with vinyl acetate in organic solvent.

Convenient syntheses of optically active β-lactams by enzymatic resolution

Nagai,Shiozawa,Achiwa,Terao

, p. 1933 - 1938 (2007/10/02)

Optically active β-lactams were synthesized by lipase-catalyzed kinetic resolution using the enantioselective hydrolysis of N-acyloxymethyl β- lactams (3) in an organic solvent and the transesterification of N- hydroxymethyl β-lactams (2) with vinyl aceta

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