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68756-65-0

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68756-65-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 68756-65-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,7,5 and 6 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 68756-65:
(7*6)+(6*8)+(5*7)+(4*5)+(3*6)+(2*6)+(1*5)=180
180 % 10 = 0
So 68756-65-0 is a valid CAS Registry Number.

68756-65-0Relevant articles and documents

Zirconocene-catalyzed direct (trans)esterification of acyl acids (esters) and alcohols in a strict 1:1 ratio under solvent-free conditions

Tang, Zhi,Jiang, Qiutao,Peng, Lifen,Xu, Xinhua,Li, Jie,Qiu, Renhua,Au, Chak-Tong

supporting information, p. 5396 - 5402 (2017/11/22)

A highly efficient way for the direct (trans)esterification of acyl acids (esters) and alcohols in a strict 1:1 ratio using a zirconocene complex (1, 1 mol%), a strong Lewis acid of good water tolerance, as a catalyst under solvent-free conditions has been developed. A wide range of acid and alcohol (esters) substrates undergo (trans)esterification to produce carboxylic ester motifs in moderate to good or excellent yields with good functional tolerance, such as that towards C-Br as well as CC and CC bonds. And complex 1 can be recycled six times without showing a significant decline in catalytic efficiency. It was demonstrated that cyclandelate, which is used to treat high blood pressure as well as heart and blood-vessel diseases, can be directly synthesized on a gram scale with 81% yield (6.70 g) using complex 1.

An efficient and convenient procedure for preparation of mandelates catalysed by TiO2/SO4/2- solid superacid

Jin,Ma,Li,Sun,Li

, p. 2051 - 2054 (2007/10/03)

An easy and efficient synthesis of mandelates in excellent yields from mandelic acid with alcohols catalysed by TiO2/SO42- solid superacid.

A general and simple synthesis of phenylglyoxylic esters via the oxidation of mandelic esters with ammonium chlorochromate adsorbed on alumina

Zhang, Gui-Sheng,Gong, Hui

, p. 3149 - 3153 (2007/10/03)

A general method for preparation of phenylglyoxylic esters by oxidation of mandelic esters with readily available ammonium chlorochromate adsorbed on alumina is described.

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