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209974-60-7

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209974-60-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 209974-60-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,9,9,7 and 4 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 209974-60:
(8*2)+(7*0)+(6*9)+(5*9)+(4*7)+(3*4)+(2*6)+(1*0)=167
167 % 10 = 7
So 209974-60-7 is a valid CAS Registry Number.

209974-60-7Relevant articles and documents

Synthesis of pyrrolo[1,2-a]quinoxaline derivatives by lewis acid-catalyzed reactions of 1-(2-isocyanophenyl)pyrroles

Kobayashi,Irisawa,Matoba,Matsumoto,Yoneda,Morikawa,Konishi

, p. 1109 - 1114 (2001)

1-(2-Isocyanophenyl)pyrroles have been prepared. They react in moderate to good isolated yields with aldehydes (or ketones), oxiranes, and acetals in the presence of catalytic amounts of diethyl ether-boron trifluoride to give pyrrolo [1,2-a]quinoxalines carrying an oxyalkyl substituent, such as α-hydroxyalkyl, β-hydroxyalkyl, or α-alkoxyalkyl, at the 4-position.

Catalyst-free synthesis of phenanthridinesviaelectrochemical coupling of 2-isocyanobiphenyls and amines

Malviya, Bhanwar Kumar,Singh, Karandeep,Jaiswal, Pradeep K.,Karnatak, Manvika,Verma, Ved Prakash,Badsara, Satpal Singh,Sharma, Siddharth

, p. 6367 - 6378 (2021/04/16)

Catalyst free synthesis of 6-aryl phenanthridines and amides through an electrochemical reaction is reported in this study. The coupling reaction proceeds by the cathodic reduction ofin situformed diazonium ions, which are formed from anilines and an alkyl nitrite. The generated aryl radical diazonium ions coupled from isocyanides furnished the desired products in good yields. This cascade reaction was conducted in an undivided cell equipped with an RVC as the anode and Pt as the cathode usingnBu4NBF4as the electrolyte at room temperature. A series of detailed mechanistic studies have also been performed, including a radical clock experiment and cyclic voltammetry analysis.

6π-Electrocyclization in water: microwave-assisted synthesis of polyheterocyclic-fused quinoline-2-thiones

Chen, Xiao-Lan,Li, Xiao-Yun,Liang, Xing-Xing,Liu, Yan,Lu, Xin-Yuan,Qu, Ling-Bo,Wei, Chuan-Wan,Yu, Bing,Zhu, Shan-Shan

supporting information, p. 4445 - 4449 (2020/08/10)

Microwave-assisted synthesis of polyheterocyclic-fused quinoline-2-thiones through the annulation of ortho-heteroaryl anilines and CS2 was realized in water without using any catalysts and additives. The desired products were obtained in high yields throu

AgI-Promoted Difluoromethylation of Isocyanides To Give Difluoromethylated Phenanthridines

Wan, Wen,Xu, Xiaochen,Chen, Yunrong,Jiang, Haizhen,Wang, Yong,Deng, Hongmei,Hao, Jian

, p. 3145 - 3151 (2017/06/21)

An AgI-mediated ethoxycarbonyldifluoromethylation of isocyanides has been developed. This radical cascade reaction involves the addition of difluoromethylene radical to the isocyanide functionality, and subsequent homolytic aromatic substitution to give difluoromethylated phenanthridines with a good functional-group tolerance.

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