申请人:Kitagawa Hideo
公开号:US20120046498A1
公开(公告)日:2012-02-23
The present invention is a method for producing a polyhydric phenol, including the following steps (a) to (d): (a) a first step of producing (4S,5R,6S)-4,5,6-trihydroxy-2-cyclohexcene-
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-one from 2-deoxy-scyllo-inosose by a dehydration reaction; (b) a second step of producing 1,2,4-trihydroxybenzene from the (4S,5R,6S)-4,5,6-trihydroxy-2-cyclohexene-
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-one obtained in the first step by a dehydration reaction; (c) a third step of producing 4-hydroxycyclohexane-1,3-dione from the 1,2,4-trihydroxybenzene by a catalytic hydrogenation reaction with the use of a metal catalyst; and (d) a fourth step of producing hydroquinone by heating the 4-hydroxycyclohexane-1,3-dione.
本发明涉及一种生产多羟基苯酚的方法,包括以下步骤(a)至(d):(a)第一步,通过脱水反应从2-去氧-赤藓糖生成(4S,5R,6S)-4,5,6-三羟基-2-环己烯-1-酮;(b)第二步,通过脱水反应从第一步得到的(4S,5R,6S)-4,5,6-三羟基-2-环己烯-1-酮生成1,2,4-三羟基苯;(c)第三步,使用金属催化剂进行催化氢化反应,从1,2,4-三羟基苯生成4-羟基环己烷-1,3-二酮;(d)第四步,通过加热4-羟基环己烷-1,3-二酮生成对苯二酚。