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156746-77-9

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156746-77-9 Usage

Uses

2-Chloro-4-iodo-6-methylbenzenamine is a reactant used in the preparation of vanilloid receptor antagonists.

Check Digit Verification of cas no

The CAS Registry Mumber 156746-77-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,7,4 and 6 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 156746-77:
(8*1)+(7*5)+(6*6)+(5*7)+(4*4)+(3*6)+(2*7)+(1*7)=169
169 % 10 = 9
So 156746-77-9 is a valid CAS Registry Number.

156746-77-9Upstream product

156746-77-9Relevant articles and documents

Aromatic iodination with the I2-HgX2 combination

Bachki, Abderrazak,Foubelo, Francisco,Yus, Miguel

, p. 5139 - 5146 (2007/10/02)

The reaction of differnt aromatic compounds 1a-1t with iodine and a mercury(II)-salt 2 [mercury(II) chloride, nitrate or triflate] (1:1:1 molar ratio) in dichloromethane at room temperature leads to the corresponding iodoarene 3, the obtained regiochemistry being the expected. Concerning the mercury(II) salt, the observed reactivity decreased in the series triflate > nitrate > chloride according to their ionic character. An activation of the iodine molecule by the mercury(II) salt followed by a S(E) reaction with the aromatic compounds is postulated as the possible mechanism.

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