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75658-85-4

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75658-85-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 75658-85-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,6,5 and 8 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 75658-85:
(7*7)+(6*5)+(5*6)+(4*5)+(3*8)+(2*8)+(1*5)=174
174 % 10 = 4
So 75658-85-4 is a valid CAS Registry Number.

75658-85-4SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 20, 2017

Revision Date: Aug 20, 2017

1.Identification

1.1 GHS Product identifier

Product name (5S)-3-oxabicyclo[3.2.0]heptan-4-one

1.2 Other means of identification

Product number -
Other names 3-Oxabicyclo[3.2.0]heptan-2-one,(1S)

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:75658-85-4 SDS

75658-85-4Relevant articles and documents

Enantioselective reduction of meso-cyclic-1,2-dicarboxylic anhydrides and 1,2-dicarboximides: Asymmetric synthesis of bicyclic lactones and hydroxylactams

Matsuki,Inoue,Ishida,Takeda,Nakagawa,Hino

, p. 9 - 18 (2007/10/02)

Chiral bicyclic lactones (3,8,9) and bicyclic hydroxylactams (10-13) were synthesized by highly enantioselective reduction of meso-cyclic-1,2- dicarboxylic anhydrides (1, 4) and meso-cyclic-1,2-dicarboximides (2) with lithium aluminum hydride (LiAlH4)-alcohol(ROH)-(R)- or (S)-1,1'-bi-2- naphthol complex [(R)- or (S)-BINAL-H(ROH)]. Treatment of the hydroxylactams (10-13) with triethylsilane (Et3SiH) and trifluoroacetic acid (CF3CO2H) gave chiral bicyclic lactams (14, 15) in quantitative yields. Removal of the N-4-methoxyphenyl group of the lactams (14, 15) with cerium(IV) ammonium nitrate (CAN) proceeded smoothly to give the corresponding N-unsubstituted lactams (16, 17) in high optical purity.

AN ASYMMETRIC SYNTHESIS OF BICYCLIC LACTONES AND ITS APPLICATION TO THE ASYMMETRIC SYNTHESIS OF (1R,3S)-CIS-CHRYSANTHEMIC ACID

Mukaiyama, Teruaki,Yamashita, Hiroyuki,Asami, Masatoshi

, p. 385 - 388 (2007/10/02)

Optically active bicyclic lactones are synthesized from imides, derived from (R)-(-)-2-amino-2-phenylethanol and meso-cyclic-1,2-cis-dicarboxylic acids, by successive treatment with sodium bis(2-methoxyethoxy)aluminum hydride and sodium borohydride, followed by acid hydrolysis.This reaction is successfully applied to the asymmetric synthesis of (1R,3S)-cis-chrysanthemic acid.

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