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1238251-77-8

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1238251-77-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1238251-77-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,8,2,5 and 1 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1238251-77:
(9*1)+(8*2)+(7*3)+(6*8)+(5*2)+(4*5)+(3*1)+(2*7)+(1*7)=148
148 % 10 = 8
So 1238251-77-8 is a valid CAS Registry Number.

1238251-77-8Relevant articles and documents

Synthesis of polysubstituted cyclopenta[b]indoles via relay gold(i)/Bronsted acid catalysis

Dhiman, Seema,Ramasastry

, p. 557 - 560 (2015/01/09)

An efficient relay catalytic process involving Au(i)/Bronsted acid to access various polysubstituted cyclopentannulated indoles from easily accessible 1-(2-aminophenyl)prop-2-ynols and readily available 1,3-dicarbonyls has been developed. In an unprecedented event, the intermediate 2-indolylmethyl cations undergo the cation-Ene reaction with various 1,3-dicarbonyls followed by an intramolecular Friedel-Crafts-type reaction generating functionalized cyclopenta[b]indoles. This journal is

Electrophile-driven regioselective synthesis of functionalized quinolines

Ali, Shaukat,Zhu, Hai-Tao,Xia, Xiao-Feng,Ji, Ke-Gong,Yang, Yan-Fang,Song, Xian-Rong,Liang, Yong-Min

, p. 2598 - 2601 (2011/06/26)

Highly substituted 3-iodoquinolines bearing different alkyl and aryl moieties can be synthesized in moderate to excellent yields (up to 99%) by 6-endo-dig iodocyclization of 2-tosylaminophenylprop-1-yn-3-ols with molecular iodine (I2) under mil

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