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857271-74-0

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857271-74-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 857271-74-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,7,2,7 and 1 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 857271-74:
(8*8)+(7*5)+(6*7)+(5*2)+(4*7)+(3*1)+(2*7)+(1*4)=200
200 % 10 = 0
So 857271-74-0 is a valid CAS Registry Number.

857271-74-0Downstream Products

857271-74-0Relevant articles and documents

Practical synthesis of polysubstituted imidazoles via iodine- Catalyzed aerobic oxidative cyclization of aryl ketones and benzylamines

Huang, Huawen,Ji, Xiaochen,Wu, Wanqing,Jiang, Huanfeng

, p. 170 - 180 (2013/03/13)

A practical synthetic method for polysubstituted imidazoles via iodine-catalyzed aerobic oxidative cyclization of aryl ketones and benzylamines has been developed. It was found to tolerate a broad range of substrates to prepare polysubstituted imidazole derivatives in a one-pot manner, and thus importantly allowed product diversity for imidazole chemistry. Additionally, the resultant 1,2,4-trisubstituted imidazoles could be conveniently transformed to functionalized 1,2,4,5-tetrasubstituted imidazoles via electrophilic substitution or direct C-H functionalization, or 2,4-diaryl-1H-imidazoles by debenzylation reaction, which further indicates potential applications of this method in synthetic and pharmaceutical chemistry. Copyright

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