PROCESS FOR PRODUCTION PHENOL DERIVATIVES SUBSTITUTED WITH IODINE AT ORTHO POSITION

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United States of America Patent

APP PUB NO 20100217027A1
SERIAL NO

12675697

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Abstract

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A process in which a phenol derivative is iodinated to produce a 2-iodophenol or 2,6-diiodophenol derivative substituted with iodine at an ortho position thereof is provided, which does not require any step of recovery of iodine but can produce it at low cost, in high yield and with high quality. A phenol derivative is mixed with a pyridine and hydrogen peroxide or iodic acid as an oxidizing agent, and reacted with molecular iodine. As a result, iodination can be performed very efficiently with iodine in an amount close to the theoretical amount relative to the phenol derivative, and the 2-iodophenol or 2,6-diiodophenol derivative can be obtained in high yield and with high quality.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
MITSUBISHI GAS CHEMICAL COMPANY, INC.TOKYO925

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Tanaka, Kazuo Tokyo, JP 209 1921

Cited Art Landscape

Patent Info (Count) # Cites Year
 
FUJI XEROX CO., LTD. (1)
* 5856596 Process for preparing mono-iodinated aromatic compound 4 1997
 
THE ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA (1)
* 2003/0147,815 Method to treat chronic heart failure and/or elevated cholesterol levels 0 2003
 
MITSUBISHI GAS CHEMICAL COMPANY, INC. (1)
* 2007/0219,396 Method For Producing 2-Amino-5-Iodobenzoic Acid 2 2005
 
Southern Arizona Veterans Affairs Health Care System (1)
* 6534676 Method to treat chronic heart failure and/or elevated cholesterol levels using 3,5-diiodothyropropionic acid and method to prepare same 6 2001
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