Process for producing 3-methyltetrahydrofuran, and process for producing an intermediate thereof
申请人:KURARAY CO., LTD.
公开号:EP1057823A2
公开(公告)日:2000-12-06
The present invention provides:
1. a process for producing 3-methyltetrahydrofuran, comprising the steps of reacting 3-methyl-3-buten-1-ol with hydrogen peroxide in the presence of zeolite to obtain 3-hydroxy-3-methyltetrahydrofuran, and reacting the resultant 3-hydroxy-3-methyltetrahydrofuran with hydrogen in the presence of an acidic substance and a hydrogenation catalyst,
2. a process for producing 3-methyltetrahydrofuran, comprising reacting 3-hydroxy-3-methyltetrahydrofuran with hydrogen in the presence of an acidic substance and a hydrogenation catalyst,
3. a process for producing 3-hydroxy-3-methyltetrahydrofuran, comprising reacting 3-methyl-3-buten-1-ol with hydrogen peroxide in the presence of zeolite,
4. a process for producing 3-methyldihydrofuran, comprising dehydrating 3-hydroxy-3-methyltetrahydrofuran in the presence of an acidic substance,
5. a process for producing 3-methyltetrahydrofuran, comprising reacting 3-methyldihydrofuran with hydrogen in the presence of a hydrogenation catalyst, and
6. a process for producing 3-methyltetrahydrofuran, comprising cyclizing 3-methyl-3-buten-1-ol in the presence of iodine.
本发明提供了
1. 一种生产
3-甲基四氢呋喃的工艺,包括以下步骤:在
沸石存在下,使
3-甲基-3-丁烯-1-醇与
过氧化氢反应,得到3-羟基-
3-甲基四氢呋喃;在酸性物质和氢化催化剂存在下,使得到的3-羟基-
3-甲基四氢呋喃与
氢气反应、
2. 一种生产
3-甲基四氢呋喃的工艺,包括在酸性物质和氢化催化剂存在下,使 3-羟基-
3-甲基四氢呋喃与
氢气反应、
3. 一种生产 3-羟基-
3-甲基四氢呋喃的工艺,包括在
沸石存在下使
3-甲基-3-丁烯-1-醇与
过氧化氢反应、
4. 一种生产 3-甲基二氢
呋喃的工艺,包括在酸性物质存在下使 3-羟基-
3-甲基四氢呋喃脱
水、
5. 一种生产
3-甲基四氢呋喃的工艺,包括在氢化催化剂存在下使 3-甲基二氢
呋喃与
氢气反应,以及
生产
3-甲基四氢呋喃的工艺,包括在
碘存在下使
3-甲基-3-丁烯-1-醇环 化。