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860243-44-3

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860243-44-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 860243-44-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,6,0,2,4 and 3 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 860243-44:
(8*8)+(7*6)+(6*0)+(5*2)+(4*4)+(3*3)+(2*4)+(1*4)=153
153 % 10 = 3
So 860243-44-3 is a valid CAS Registry Number.

860243-44-3Relevant articles and documents

Ammonium Salt-Catalyzed Highly Practical Ortho-Selective Monohalogenation and Phenylselenation of Phenols: Scope and Applications

Xiong, Xiaodong,Yeung, Ying-Yeung

, p. 4033 - 4043 (2018/05/22)

An ortho-selective ammonium chloride salt-catalyzed direct C-H monohalogenation of phenols and 1,1′-bi-2-naphthol (BINOL) with 1,3-dichloro-5,5-dimethylhydantoin (DCDMH) as the chlorinating agent has been developed. The catalyst loading was low (down to 0.01 mol %) and the reaction conditions were very mild. A wide range of substrates including BINOLs were compatible with this catalytic protocol. Chlorinated BINOLs are useful synthons for the synthesis of a wide range of unsymmetrical 3-aryl BINOLs that are not easily accessible. In addition, the same catalytic system can facilitate the ortho-selective selenylation of phenols.

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