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80521-10-4

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80521-10-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 80521-10-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,5,2 and 1 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 80521-10:
(7*8)+(6*0)+(5*5)+(4*2)+(3*1)+(2*1)+(1*0)=94
94 % 10 = 4
So 80521-10-4 is a valid CAS Registry Number.

80521-10-4Relevant articles and documents

An iodobenzene-catalysed domino route toward quinoxaline derivatives from simple ketones and o-phenylenediamines in one pot

Li, Xiaoqing,Zhou, Can,Hu, Zhiyan,Xu, Xiangsheng

, p. 579 - 581 (2013/10/22)

An iodobenzene-catalysed domino route to quinoxalines from ketones and o-phenylenediamines in one pot has been developed. This transformation consisted of the generation of Koser's generation, α-tosyloxylation of ketones, nucleophilic substitution and intramolecular dehydration with o-phenylenediamines, and dehydrogenation. Website

Iodobenzene-catalyzed synthesis of α-azidoketones and α-thiocyanatoketones from aryl ketones with MCPBA as a cooxidant

Chang, Ya-Li,Chung, Chi-Lin,Wu, Fang-Wen,Wang, Huey-Min,Hou, Rei-Sheu,Kang, Iou-Jiun,Chen, Ling-Ching

experimental part, p. 149 - 152 (2011/04/16)

Iodobenzene-catalyzed synthesis of α-azidoketones and α-thiocyanatoketones from aryl ketones with MCPBA as a cooxidant is described. The method is simple, rapid and practical, generating α-azidoketones and α-thiocyanatoketones from the aryl ketone without

One-Pot Protocol for Synthesis of -Organosulfonyloxy Ketones from Secondary Alcohols Using Hypervalent Iodine(V)-Mediated Oxidations

Deshmukh, Swapnil S.,Huddar, Sameerana N.,Akamanchi, Krishnacharya G.

experimental part, p. 3101 - 3110 (2009/11/30)

Tosyloxy ketones and -mesyloxy ketones were directly prepared from alcohols in one pot by treatment with hypervalent iodine(V) reagents in combination with p-toluenesulfonic acid and methanesulfonic acid, respectively, in moderate to good yields. Reaction

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