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87666-65-7

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87666-65-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 87666-65-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,6,6 and 6 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 87666-65:
(7*8)+(6*7)+(5*6)+(4*6)+(3*6)+(2*6)+(1*5)=187
187 % 10 = 7
So 87666-65-7 is a valid CAS Registry Number.

87666-65-7Downstream Products

87666-65-7Relevant articles and documents

Enantioposition-selective arylation of biaryl ditriflates by palladium- catalyzed asymmetric Grignard cross-coupling

Kamikawa, Takashi,Hayashi, Tamio

, p. 3455 - 3466 (1999)

Asymmetric cross-coupling of achiral biaryl ditriflates with aryl Grignard reagents in the presence of 1 equiv of lithium bromide and 5 tool % of palladium complex PdCl2[(S)-alaphos], where alaphos stands for (2- dimethylamino)propyldiphenylphosphine, gave axially chiral monophenylation products with high enantioposition-selectivity. The remaining triflate group in the monophenylation products was substituted with carboxyl and diphenylphosphino groups through palladium-catalyzed carbonylation and diphenylphosphinylation, respectively.

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