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1196957-90-0

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1196957-90-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1196957-90-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,9,6,9,5 and 7 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1196957-90:
(9*1)+(8*1)+(7*9)+(6*6)+(5*9)+(4*5)+(3*7)+(2*9)+(1*0)=220
220 % 10 = 0
So 1196957-90-0 is a valid CAS Registry Number.

1196957-90-0Relevant articles and documents

Synthesis of 1,4-dihydroquinoline derivatives under transition-metal-free conditions and their diverse applications

Chu, Xue-Qiang,Zi, You,Meng, Hua,Xu, Xiao-Ping,Ji, Shun-Jun

supporting information, p. 4243 - 4251 (2014/06/10)

A transition-metal-free process for the synthesis of 1,4-dihydroquinoline derivatives starting from simple enaminones with aldehydes via intermolecular cascade cyclization in a one-pot protocol is developed. This methodology affords a variety of products in moderate to good yields. Particularly, the use of the enaminone fragment in 1,4-dihydroquinoline derivatives 3 as a leaving group for further diverse applications with C-nucleophiles is proved to be feasible. This journal is the Partner Organisations 2014.

Nano-iron oxide as a recyclable catalyst for intramolecular C-N cross-coupling reactions under ligand-free conditions: One-pot synthesis of 1,4-dihydroquinoline derivatives

Wu, Xiao-Jin,Jiang, Ran,Wu, Bing,Su, Xiao-Ming,Xu, Xiao-Ping,Ji, Shun-Jun

experimental part, p. 3150 - 3156 (2010/04/28)

The ligand-free nanoparticle ferroferric oxide catalytic system has been developed to promote the intramolecular C-N cross-coupling reaction. With this protocol, various 1,4-dihydroquinoline derivatives were synthesized from o-halobenzaldehydes and β-enam

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