Method for synthesizing furanol by catalyzing basic ferric carboxylate
A technology of furan phenol and iron carboxylate, which is applied in chemical instruments and methods, physical/chemical process catalysts, organic compounds/hydrides/coordination complex catalysts, etc., can solve the problems of low synthesis yield of furan phenol and aluminum-containing waste liquid Environmental protection problems, long response time and other problems, to achieve the effect of reducing production costs, quick results, and less investment
Active Publication Date: 2010-12-29
HUNAN HAILI ZHUZHOU FINE CHEM
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Problems solved by technology
Using aluminum isopropoxide as catalyst, the synthesis yield of furan phenol is not high, and the yield is ≤78% [calculated as 2-(2-methallyloxy)phenol], and the reaction time is long, the energy consumption is high, and the aluminum content is high. The post-treatment of waste liquid is an environmental protection problem
At present, there is no report on the application of basic carboxylate iron as a catalyst in chemical synthesis, especially in the catalytic synthesis of furanol
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The invention discloses a method for synthesizing benzofuranol by using basic ferric carboxylate, the method comprises that a raw material 2-methyl allyloxy phenol under catalysis of the basic ferric carboxylate is synthesized into the benzofuranol, namely 2,3-dihydro-2,2-dimethyl-7-benzofuranol, and a reaction formula is shown as the right formula. The product benzofuranol obtained by the methodhas reaction yield more than or equal to 80.0 percent in terms of the 2-methyl allyloxy phenol. The method has the characteristics of high yield, short reaction time, low cost, convenient operation, low environmental protection requirement on post-treatment, and the like.
Description
【Technical field】 The invention relates to a preparation method of furanol (chemical name 2,3-dihydro-2,2-dimethyl-7-hydroxybenzofuran), especially a method for catalytically synthesizing furanol by using basic iron carboxylate as a catalyst. 【Background technique】 Furanol, whose chemical name is 2,3-dihydro-2,2-dimethyl-7-hydroxybenzofuran, is a carbamate pesticide used in the production of carbofuran, haoanwei, carbofuran, and furancarb intermediates. Its structural formula is represented by formula 1: The cyclization reaction equation of furanol is as follows: Most of the furanol plants that have been industrialized at present adopt the production route using catechol as the raw material, and the yield of furanol ring closure reaction is only 50-78%. Using aluminum isopropoxide as catalyst, the synthesis yield of furan phenol is not high, and the yield is ≤78% [calculated as 2-(2-methallyloxy)phenol], and the reaction time is long, the energy consumption is high,...
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IPC IPC(8): C07D307/86B01J31/04
Inventor 王宇张建宇王晓光胡艾希罗先褔肖旭辉熊前政孔晓红
Owner HUNAN HAILI ZHUZHOU FINE CHEM