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公开(公告)号：EP0337246A1
公开(公告)日：1989-10-18
申请号：EP89105871.1
申请日：1989-04-04
CPC分类号： C07C51/235 , C07C59/19
摘要： A process for preparing pyruvate in high yield is disclosed, comprising reacting propylene glycol with molecular oxygen in an aqueous solution in the presence of a platinum catalyst containing a metallic component selected from the group consisting of lead, thallium, and cadmium while controlling the pH of the reaction mixture between 7 and 9. The crude pyruvate can be purified by treating with activated carbon in the presence of water.
摘要翻译： 公开了一种以高产率制备丙酮酸盐的方法，包括在含有选自铅，铊和镉的金属组分的铂催化剂存在下，在水溶液中使丙二醇与分子氧反应，同时控制pH 反应混合物在7和9之间。粗制丙酮酸盐可以通过在水存在下用活性炭处理来纯化。
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公开(公告)号：EP0353707B1
公开(公告)日：1994-06-22
申请号：EP89114181.4
申请日：1989-08-01
发明人： Seto, Takatoshi , Iwane, Hiroshi , Imanari, Makoto
IPC分类号： C07C69/145 , C07C67/04
CPC分类号： C07C67/04 , C07C69/003 , C07C69/14
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公开(公告)号：EP0337246B1
公开(公告)日：1992-07-08
申请号：EP89105871.1
申请日：1989-04-04
CPC分类号： C07C51/235 , C07C59/19
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公开(公告)号：EP0169436A1
公开(公告)日：1986-01-29
申请号：EP85108534.0
申请日：1985-07-09
IPC分类号： C07D209/08
CPC分类号： C07D209/08 , Y02P20/582
摘要： A process for preparing indoles in high yield by reacting anilines and 1.2-glycols in a liquid phase in the presence of a cadmium bromide or idoide/potassium bromide or iodide catalyst. The used catalyst can be easily recovered and when reused, exhibits excellent performance.
摘要翻译： 在溴化镉或碘化物/溴化钾或碘化物催化剂存在下，通过使苯胺和1,2-二醇在液相中反应来高产率地制备吲哚的方法。 使用过的催化剂可以很容易地回收，当重复使用时，表现出优异的性能。
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公开(公告)号：EP0353707A3
公开(公告)日：1991-11-21
申请号：EP89114181.4
申请日：1989-08-01
发明人： Seto, Takatoshi , Iwane, Hiroshi , Imanari, Makoto
IPC分类号： C07C69/145 , C07C67/04
CPC分类号： C07C67/04 , C07C69/003 , C07C69/14
摘要： An improved process for preparing a β-acyloxypropionaldehyde by reacting acrolein and a carboxylic acid is disclosed, in which the reaction is in the presence of calcium chloride and/or calcium bromide as a catalyst. The catalyst is very cheap and attains improved conversion and improved selectivity.
摘要翻译： 公开了一种通过丙烯醛和羧酸反应制备β-酰氧基丙醛的改进方法，其中反应在氯化钙和/或溴化钙作为催化剂存在下进行。 该催化剂非常便宜并且获得改进的转化率和改进的选择性。
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6.发明公开Process for preparing beta-acyloxypropionaldehyde 失效Herstellungsverfahren vonβ-Acyloxyproprontdehyd。
公开(公告)号：EP0353707A2
公开(公告)日：1990-02-07
申请号：EP89114181.4
申请日：1989-08-01
发明人： Seto, Takatoshi , Iwane, Hiroshi , Imanari, Makoto
IPC分类号： C07C69/145 , C07C67/04
CPC分类号： C07C67/04 , C07C69/003 , C07C69/14
摘要： An improved process for preparing a β-acyloxypropionaldehyde by reacting acrolein and a carboxylic acid is disclosed, in which the reaction is in the presence of calcium chloride and/or calcium bromide as a catalyst. The catalyst is very cheap and attains improved conversion and improved selectivity.
摘要翻译： 公开了通过丙烯醛和羧酸反应制备β-酰氧基丙醛的改进方法，其中反应在氯化钙和/或溴化钙作为催化剂存在下进行。 该催化剂非常便宜并且获得改进的转化率和改善的选择性。
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公开(公告)号：EP0169436B1
公开(公告)日：1989-10-04
申请号：EP85108534.0
申请日：1985-07-09
IPC分类号： C07D209/08
CPC分类号： C07D209/08 , Y02P20/582
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公开(公告)号：EP0182256A2
公开(公告)日：1986-05-28
申请号：EP85114380.0
申请日：1985-11-12
IPC分类号： C07D209/08
CPC分类号： C07D209/08
摘要： A process for producing an indole by catalytic reaction of a 2-(o-aminoaryl)ethanol, said reaction being carried out by heating in a liquid phase in the presence of an alkali metal using a catalyst containing a metal selected from the group consisting of a platinum-group metal, nickel and copper.
The process is industrially advantageous in that indoles are produced in high yield.-
公开(公告)号：EP0182256B1
公开(公告)日：1992-10-07
申请号：EP85114380.0
申请日：1985-11-12
IPC分类号： C07D209/08
CPC分类号： C07D209/08
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公开(公告)号：EP0182256A3
公开(公告)日：1988-07-06
申请号：EP85114380
申请日：1985-11-12
IPC分类号： C07D209/08
CPC分类号： C07D209/08
摘要： A process for producing an indole by catalytic reaction of a 2-(o-aminoaryl)ethanol, said reaction being carried out by heating in a liquid phase in the presence of an alkali metal using a catalyst containing a metal selected from the group consisting of a platinum-group metal, nickel and copper. The process is industrially advantageous in that indoles are produced in high yield.
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