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((1S,2S)-2-Methoxy-cyclohexylmethyl)-benzene is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

187404-42-8

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187404-42-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 187404-42-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,7,4,0 and 4 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 187404-42:
(8*1)+(7*8)+(6*7)+(5*4)+(4*0)+(3*4)+(2*4)+(1*2)=148
148 % 10 = 8
So 187404-42-8 is a valid CAS Registry Number.

187404-42-8Relevant articles and documents

Microbially-aided preparation of (S)-2-methoxycyclohexanone key intermediate in the synthesis of Sanfetrinem

Fuganti, Claudio,Grasselli, Piero,Mendozza, Monica,Servi, Stefano,Zucchi, Gioia

, p. 2617 - 2624 (1997)

(S) 2-Methoxycyclohexanone 1, useful intermediate in the synthesis of Sanfetrinem 2, is obtained from (S) α-benzylidene cyclohexanol 4, derived from the ketone 3 through a short sequence involving as key step yeast reduction of the carbonyl group. The (R) enantiomer of 1 is similarly accessible from the (R) enantiomer of 4 obtained either upon Candida lipolytica-mediated reduction of 3 or from (R,S)-4 by porcine pancreatic lipase catalyzed acetylation with vinyl acetate. Also the saturated carbinols 7 and 8, which accompany 4 in the microbial reduction of 3, are converted into 1 through unexceptional steps. Nocardia opaca, Pichia etchelsii and Mucor subtilissimus provide from 3 upon reduction (S)-configurated 4, 7 and 8 possessing moderate-high ee values.

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