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4-(3,4-Dichlorophenyl)-4-oxobutanoic acid 1,1-dimethylethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

147189-99-9

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147189-99-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 147189-99-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,7,1,8 and 9 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 147189-99:
(8*1)+(7*4)+(6*7)+(5*1)+(4*8)+(3*9)+(2*9)+(1*9)=169
169 % 10 = 9
So 147189-99-9 is a valid CAS Registry Number.

147189-99-9Relevant academic research and scientific papers

Synthesis of 4(S)-(3,4-dichlorophenyl)-3,4-dihydro-1(2H)-naphthalenone by SN2 cuprate displacement of an activated chiral benzylic alcohol

Quallich,Woodall

, p. 10239 - 10248 (1992)

Two routes for the preparation of 4(S)-(3,4-dichlorophenyl)-3,4-dihydro-1(2H)-naphthalenone are reported. The most efficient route generates a chiral benzylic alcohol by catalytic asymmetric oxazaborolidine reduction of a γ-ketoester that is subsequently activated and displaced in an SN2 manner with a higher order cuprate. Intramolecular Friedel-Crafts cyclization of the resulting t-butylester affords the title compound.

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