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71862-03-8

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71862-03-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 71862-03-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,8,6 and 2 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 71862-03:
(7*7)+(6*1)+(5*8)+(4*6)+(3*2)+(2*0)+(1*3)=128
128 % 10 = 8
So 71862-03-8 is a valid CAS Registry Number.

71862-03-8Downstream Products

71862-03-8Relevant articles and documents

Synthesis of imides via palladium-catalyzed three-component coupling of aryl halides, isocyanides and carboxylic acids

Wang, Bo,He, Dan,Ren, Beige,Yao, Tuanli

supporting information, p. 900 - 903 (2020/02/03)

A palladium-catalyzed three-component synthesis of acyclic imides from feedstock aryl halides, carboxylic acids and isocyanides through the intermediacy of isoimides has been developed. The key to the success of this approach was controlled isocyanide slow addition and organic/aqueous biphasic conditions. This transition-metal-catalyzed approach features readily available starting materials, atom- and step-economy, good functional group compatibility and gram-scale synthetic capability. Utilization of this new method is illustrated in the late-stage functionalization of drugs Carprofen, Loxoprofen and Flurbiprofen. This strategy has also been successfully applied in the synthesis of cyclic imides including phthalimide, homophthalimide, and 2H-2-benzazepine-1,3-dione derivatives.

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