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1616666-51-3

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1616666-51-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1616666-51-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,1,6,6,6 and 6 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1616666-51:
(9*1)+(8*6)+(7*1)+(6*6)+(5*6)+(4*6)+(3*6)+(2*5)+(1*1)=183
183 % 10 = 3
So 1616666-51-3 is a valid CAS Registry Number.

1616666-51-3Relevant articles and documents

Syntheses of imidazo-, oxa-, and thiazepine ring systems via ring-opening of aziridines/Cu-catalyzed C-N/C-C bond formation

Ghorai, Manas K.,Sahoo, Ashis Kumar,Bhattacharyya, Aditya

, p. 6468 - 6479 (2014/08/05)

A simple and unpredicted synthetic pathway toward racemic and scalemic tetrahydrodibenzoimidazoazepines has been invented serendipitously proceeding through an SN2-type ring-opening of N-activated aziridines with 2-bromobenzylamine followed by a hitherto unprecedented cascade cyclization reaction sequence comprising a Cu-catalyzed cross dehydrogenation C-N coupling and an Ullmann C-C bond formation reaction. The tetrahydrobenzoxazepine and the tetrahydrobenzothiazepine derivatives have also been synthesized via the ring-opening of aziridines with 2-bromobenzyl alcohols and -mercaptan, respectively, followed by Cu-catalyzed N-arylation reaction.

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