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1414874-72-8

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1414874-72-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1414874-72-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,1,4,8,7 and 4 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1414874-72:
(9*1)+(8*4)+(7*1)+(6*4)+(5*8)+(4*7)+(3*4)+(2*7)+(1*2)=168
168 % 10 = 8
So 1414874-72-8 is a valid CAS Registry Number.

1414874-72-8Relevant articles and documents

Regioselective formation of tetrahydroselenophenes via 5-exo - Dig-cyclization of 1-butylseleno-4-alkynes

Gai, Rafaela M.,Schumacher, Ricardo F.,Back, Davi F.,Zeni, Gilson

, p. 6072 - 6075 (2013/02/22)

Results on the synthesis of tetrahydroselenophene derivatives from 1-butylseleno-4-alkynes by electrophilic cyclization using iodine as the electrophilic source are presented. This methodology was carried out via a simple process under mild reaction conditions providing the cyclized products in high yields. Electrophilic sources, such as PhSeBr, CuCl2, and CuBr2, were also used in this study. The tetrahydroselenophenes obtained by this protocol were submitted to cyanation, Suzuki, and Ullmann cross-coupling reactions to afford good yields of a cross-coupled product.

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