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52333-44-5

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52333-44-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 52333-44-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,2,3,3 and 3 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 52333-44:
(7*5)+(6*2)+(5*3)+(4*3)+(3*3)+(2*4)+(1*4)=95
95 % 10 = 5
So 52333-44-5 is a valid CAS Registry Number.

52333-44-5Relevant articles and documents

Unprecedentedly mild direct Pd-catalyzed arylation of oxazolo[4,5-b] pyridine

Zhuravlev, Fedor A.

, p. 2929 - 2932 (2006)

Pd-catalyzed C-2 arylation of oxazolo[4,5-b]pyridine proceeds efficiently at 30°C and tolerates a variety of aryl halides, including derivatized amino acids for which no racemization was observed during the reaction. Experimental evidence for facile depro

Ce(III)-catalyzed highly efficient synthesis of pyridyl benzamides from aminopyridines and nitroolefins without external oxidants

Chen, Zhengwang,Wen, Xiaowei,Qian, Yiping,Liang, Pei,Liu, Botao,Ye, Min

supporting information, p. 1247 - 1251 (2018/03/06)

An efficient synthesis of a variety of pyridyl benzamides from 2-aminopyridines and nitroolefins is described. This rare-earth-metal-catalyzed reaction provides the corresponding products with broad substrate scope in moderate to excellent yields, in the absence of additives and external oxidants. Water is used as the source of the carbonyl oxygen atom in pyridyl benzamides. Furthermore, 2-substituted oxazolo[4,5-b]pyridines are formed in good yields under the standard conditions when 2-aminopyridin-3-ols are used as the substrates.

A green route for the synthesis of 2-substituted benzoxazole derivatives catalyzed by Al3+-exchanged K10 clay

Suresh, Dhanusu,Dhakshinamoorthy, Amarajothi,Pitchumani, Kasi

supporting information, p. 6415 - 6419 (2013/11/19)

A new, simple, and efficient protocol is developed for the synthesis of 2-substituted benzoxazole derivatives through N-C-O bond formation using Al 3+-exchanged K10 clay (Al3+-K10) as catalyst. A wide range of benzoxazole derivatives

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