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Benzoin-dichloracetat, also known as benzil dichloride or 1,2-di(4-chlorophenyl)-2-phenylethanone, is an organic compound with the chemical formula C15H11Cl2O. It is a white crystalline solid that is derived from benzoin, a naturally occurring ketone found in the bark of the benzoin tree. Benzoin-dichloracetat is synthesized by reacting benzil (1,2-diphenylethanone) with chlorine gas, resulting in the formation of a dichloro derivative. Benzoin-dichloracetat is used as an intermediate in the synthesis of various pharmaceuticals, agrochemicals, and other organic compounds due to its reactivity and versatility. It is also employed as a reagent in organic synthesis, particularly in the preparation of various substituted benzene derivatives.

5771-91-5

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5771-91-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 5771-91-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,7,7 and 1 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 5771-91:
(6*5)+(5*7)+(4*7)+(3*1)+(2*9)+(1*1)=115
115 % 10 = 5
So 5771-91-5 is a valid CAS Registry Number.

5771-91-5Downstream Products

5771-91-5Relevant academic research and scientific papers

Cathodic reduction of hydroxycarbonyl compound trichloroacetyl esters

Dolly,Batanero,Barba

, p. 9161 - 9165 (2003)

New coumarins and new 2-(2′,2′-dichlorovinyl) phenols have been prepared by cathodic reduction under potentiostatic conditions of trichloroacetyl esters of o-hydroxyketones and o-hydroxyaldehydes in aprotic media. Electroreductions of trichloroacetyl esters of α-hydroxy-1,4- naphthoquinone, 3-hydroxy-2-methyl-4-pyrone, methyl salicylate and benzoin have also been investigated.

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