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95957-92-9

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95957-92-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 95957-92-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,5,9,5 and 7 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 95957-92:
(7*9)+(6*5)+(5*9)+(4*5)+(3*7)+(2*9)+(1*2)=199
199 % 10 = 9
So 95957-92-9 is a valid CAS Registry Number.

95957-92-9Relevant articles and documents

Cu-Catalyzed concise synthesis of pyridines and 2-(1 H)-pyridones from acetaldehydes and simple nitrogen donors

Li, Ziyuan,Huang, Xiaoqiang,Chen, Feng,Zhang, Chun,Wang, Xiaoyang,Jiao, Ning

supporting information, p. 584 - 587 (2015/03/04)

A highly selective copper-catalyzed concise synthesis of 3,5-diarylpyridine and 2-(1H)-pyridone has been achieved through cascade Chichibabin-type cyclization, C(sp3)-C(sp3) cleavage, and aerobic oxidation. Azide, ceric ammonium nitrate (CAN), and 2-aminopyridine are disclosed as efficient nitrogen donors in this Cu-catalysis using O2 as the oxidant. Water and molecular oxygen were employed as the oxygen source in the case of oxygenation.

A metal-free decarboxylative cyclization from natural α-amino acids to construct pyridine derivatives

Wang, Qiang,Wan, Changfeng,Gu, Yang,Zhang, Jintang,Gao, Lingfeng,Wang, Zhiyong

supporting information; experimental part, p. 578 - 581 (2011/05/06)

A metal-free decarboxylative cyclization from natural α-amino acids was developed and applied in the preparation of pyridine derivatives. By virtue of this method, a series of pyridines containing the moiety of natural α-amino acids can be synthesized efficiently from the corresponding natural α-amino acids. The Royal Society of Chemistry.

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