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64634-57-7

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64634-57-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 64634-57-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,6,3 and 4 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 64634-57:
(7*6)+(6*4)+(5*6)+(4*3)+(3*4)+(2*5)+(1*7)=137
137 % 10 = 7
So 64634-57-7 is a valid CAS Registry Number.

64634-57-7Downstream Products

64634-57-7Relevant articles and documents

Nickel-catalyzed triarylamine synthesis: Synthetic and mechanistic aspects

Li, Xin-Le,Wu, Wei,Fan, Xin-Heng,Yang, Lian-Ming

supporting information, p. 1232 - 1236 (2014/03/21)

An improved protocol was described for the amination of chloroarenes with diarylamines under NiCl2(PCy3)2 catalysis in the presence of a Grignard reagent as base. This method fully suits bromo-/iodoarene substrates as well, and even is expanded to certain aryl tosylates. A preliminary investigation into the mechanism suggests that this amination reaction might proceed through NiI and NiIII intermediates rather than via the usually expected Ni0-Ni II cycle.

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