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Cyclopentanecarboxylic acid, 2-(1,1-dimethylethyl)-5-oxo-, methyl ester, (1S,2R)- (9CI) is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

676345-40-7

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676345-40-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 676345-40-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,7,6,3,4 and 5 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 676345-40:
(8*6)+(7*7)+(6*6)+(5*3)+(4*4)+(3*5)+(2*4)+(1*0)=187
187 % 10 = 7
So 676345-40-7 is a valid CAS Registry Number.

676345-40-7SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 18, 2017

Revision Date: Aug 18, 2017

1.Identification

1.1 GHS Product identifier

Product name (1S,2R)-2-tert-Butyl-5-oxo-cyclopentanecarboxylic acid methyl ester

1.2 Other means of identification

Product number -
Other names -

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:676345-40-7 SDS

676345-40-7Downstream Products

676345-40-7Relevant academic research and scientific papers

3-Substituted and 2,3-Disubstituted Cyclopentanones via an Asymmetric Tandem 1,4-Addition/Dieckmann Cyclization

Groth, Ulrich,Halfbrodt, Wolfgang,Kalogerakis, Aris,K?hler, Thomas,Kreye, Paul

, p. 291 - 294 (2007/10/03)

A new stereoselective method for the synthesis of 3-substituted and 2,3-disubstituted cyclopentanones is described. The key step is the 1, 4-addition of a cuprate to a chilar Michael-acceptor derived from (-)-8-phenylmenthol or the Helmchen auxiliary followed by Dieckmann cyclization of the obtained chiral enolates. The resultant 2,3-cyclopentanones can be transformed after methanolysis and demethoxycarbonylation to the related 3-substituted cyclopentanones.

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