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656250-04-3

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656250-04-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 656250-04-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,5,6,2,5 and 0 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 656250-04:
(8*6)+(7*5)+(6*6)+(5*2)+(4*5)+(3*0)+(2*0)+(1*4)=153
153 % 10 = 3
So 656250-04-3 is a valid CAS Registry Number.

656250-04-3Downstream Products

656250-04-3Relevant articles and documents

Convenient synthesis of quinolines from α-2-nitroaryl alcohols and alcohols via a ruthenium-catalyzed hydrogen transfer strategy

Xie, Feng,Zhang, Min,Chen, Mengmeng,Lv, Wan,Jiang, Huanfeng

, p. 349 - 353 (2015/03/05)

A new and straightforward method for convenient synthesis of quinolines via a ruthenium-catalyzed hydrogen-transfer strategy has been demonstrated. By employing a commercially available ruthenium catalyst system, different α-2-nitroaryl alcohols were efficiently converted in combination with a variety of alcohols into various substituted products in reasonable to good yields upon isolation. The synthetic protocol is operationally simple with a broad substrate scope, and there is no need for the use of specialized reducing agents, making it a practical approach for versatile preparation of various quinoline derivatives.

A novel reductive cyclisation of o-nitrochalcones promoted by low-valent titanium: An access to 2-arylquinolines and 5,6-dihydrobenz[c]acridines

Shi, Daqing,Rong, Liangce,Wang, Juxian,Zhuang, Qiya,Wang, Xiangshan,Tu, Shujiang,Hu, Hongwen

, p. 342 - 343 (2007/10/03)

The intramolecular reductive cyclizations of o-nitrochalcones(1) induced by the TiCl4/Zn system were studied; 2-arylquinolines(2) and 5,6-dihydrobenz[c]acridines(4) were obtained in reasonable yields at room temperature conditions.

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