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173265-17-3

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173265-17-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 173265-17-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,3,2,6 and 5 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 173265-17:
(8*1)+(7*7)+(6*3)+(5*2)+(4*6)+(3*5)+(2*1)+(1*7)=133
133 % 10 = 3
So 173265-17-3 is a valid CAS Registry Number.

173265-17-3Downstream Products

173265-17-3Relevant articles and documents

METHOD OF REGIOSELECTIVE SYNTHESIS OF SUBSTITUTED BENZOATES

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Page/Page column 11; 12; 18; 19; 20, (2013/03/26)

A method of synthesis of para-substituted benzoate esters and acids is provided, wherein the para-substituted regioisomer is obtained substantially free of the meta-substituted impurity, the method comprising contacting a coumalate ester or acid and an un activated alkene at elevated temperature in the presence of a metal oxidation catalyst and an oxidant. The metal oxidation catalyst can be palladium, such as palladium on carbon, and the oxidant can be the oxygen gas in ambient air. The reaction can be carlied out without solvent or in high boiling hydrocarbon solvents such as mesitylene. When the un activated alkene is a monosubstituted alkene, yields of at least about 50 or 60% of para-substituted ester and acid products, respectively, are obtained, substantially free of the regioisomelic meta-substituted impurity.

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