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1646183-95-0

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1646183-95-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1646183-95-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,4,6,1,8 and 3 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1646183-95:
(9*1)+(8*6)+(7*4)+(6*6)+(5*1)+(4*8)+(3*3)+(2*9)+(1*5)=190
190 % 10 = 0
So 1646183-95-0 is a valid CAS Registry Number.

1646183-95-0Downstream Products

1646183-95-0Relevant articles and documents

Triazole-assisted ruthenium-catalyzed C-H arylation of aromatic amides

Al Mamari, Hamad H.,Diers, Emelyne,Ackermann, Lutz

, p. 9739 - 9743 (2014/08/18)

Site-selective ruthenium(II)-catalyzed direct arylation of amides was achieved through C-H cleavages with modular auxiliaries, derived from easily accessible 1,2,3-triazoles. The triazolyldimethylmethyl (TAM) bidentate directing group was prepared in a highly modular fashion through copper(I)-catalyzed 1,3-dipolar cycloaddition and allowed for ruthenium-catalyzed C-H arylations on arenes and heteroarenes, as well as alkenes, by using easy-to-handle aryl bromides as the arylating reagents. The triazole-assisted C-H activation strategy was found to be widely applicable, to occur under mild reaction conditions, and the catalytic system was tolerant of important electrophilic functionalities. Notably, the flexible triazole-based auxiliary proved to be a more potent directing group for the optimized ruthenium(II)-catalyzed direct arylations, compared with pyridyl-substituted amides or substrates derived from 8-aminoquinoline. Assisting activation: Ruthenium(II)-catalyzed C-H arylations of (hetero)arenes and alkenes have been achieved with aryl halides through removable bidentate auxiliaries derived from modular 1,2,3-triazoles (see scheme; TAM=triazolyldimethylmethyl).

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