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1250829-43-6

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1250829-43-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1250829-43-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,0,8,2 and 9 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1250829-43:
(9*1)+(8*2)+(7*5)+(6*0)+(5*8)+(4*2)+(3*9)+(2*4)+(1*3)=146
146 % 10 = 6
So 1250829-43-6 is a valid CAS Registry Number.

1250829-43-6Relevant articles and documents

Tunable Pd-catalyzed cyclization of indole-2-carboxylic acid allenamides: Carboamination vs microwave-assisted hydroamination

Beccalli, Egle M.,Bernasconi, Alice,Borsini, Elena,Broggini, Gianluigi,Rigamonti, Micol,Zecchi, Gaetano

experimental part, p. 6923 - 6932 (2010/11/17)

A variety of 3-vinyl-substituted imidazo[1,5-a]indole derivatives were synthesized by intramolecular Pd-catalyzed cyclization of the title allenamides through either a domino carbopalladation/exo-cyclization process or a novel hydroamination reaction that proceeds smoothly under microwave irradiation. Both the observed pathways involve a π-allyl-palladium(II) complex arising from insertion of the allene group into a palladium(II) species, the latter being formed in situ by the intervention of an aryl iodide or of the N-H group. In both cases, the role of nucleophile is covered by the indole nitrogen.

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