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公开(公告)号:US5149869A
公开(公告)日:1992-09-22
申请号:US803066
申请日:1991-12-06
申请人: Thomas Meul , Ulrich Kampfen
发明人: Thomas Meul , Ulrich Kampfen
IPC分类号: C07C51/00 , C07C51/09 , C07C61/04 , C07C67/343 , C07C69/743
CPC分类号: C07C51/09 , C07C51/00 , C07C67/343
摘要: A process for the production or R,S-2,2-dimethylcyclopropanecarboxylic acid starting from isobutylene oxide and a phosphonoacetic acid trialkyl ester. In this way, first the R,S-2,2-dimethylcyclopropanecarboxylic acid-C.sub.1 -C.sub.4 alkyl ester is formed, which then is hydrolyzed to the corresponding acid. R,S-2,2-Dimethylcyclopropanecarboxylic acid is an important intermediate product for the production of S-(+)-2,2-dimethylcyclopropanecarboxamide.
摘要翻译: 从异丁烯氧化物和膦酰基乙酸三烷基酯开始制备或R,S-2,2-二甲基环丙烷羧酸的方法。 以这种方式,首先形成R,S-2,2-二甲基环丙烷羧酸-C1-C4烷基酯,然后将其水解成相应的酸。 R,S-2,2-二甲基环丙烷羧酸是生产S - (+) - 2,2-二甲基环丙烷甲酰胺的重要中间产物。
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公开(公告)号:US6136975A
公开(公告)日:2000-10-24
申请号:US319644
申请日:1999-06-09
IPC分类号: C07C253/30 , C07C255/60 , C07C303/40 , C07C311/08 , C07D239/54 , C07D265/06 , C07D239/02 , C07C255/00
CPC分类号: C07D239/54 , C07C253/30 , C07C303/40
摘要: By a novel process, trifluoroacetoacet-anilides of the formula ##STR1## in which R.sup.1 is as defined in the description, can be prepared by reacting trifluoroacetoacetyl chloride with anilines of the formula ##STR2## if appropriate in the presence of an acid binder and if appropriate in the presence of a diluent.The compounds of the formula (I) are suitable intermediates for preparing herbicidally active uracil derivatives.
摘要翻译: PCT No.PCT / EP97 / 06842 Sec。 371日期1999年6月9日第 102(e)1999年6月9日PCT 1997年12月8日PCT公布。 第WO98 / 27057号公报 日期1998年6月25日通过一种新方法,其中R1如说明书中所定义的式的三氟乙酰乙酰苯胺可以通过在酸性粘合剂存在下将三氟乙酰乙酰氯与下式苯胺反应制备,如果合适的话 在稀释剂存在下。 式(I)的化合物是制备除草活性的尿嘧啶衍生物的合适的中间体。
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公开(公告)号:US20070037985A1
公开(公告)日:2007-02-15
申请号:US10546291
申请日:2004-02-19
IPC分类号: C07C253/30 , C07C231/10
CPC分类号: B01J23/22 , B01J21/18 , B01J23/002 , B01J23/28 , B01J23/38 , B01J23/40 , B01J27/045 , B01J2523/00 , C07C231/10 , C07C253/30 , C07D235/08 , B01J2523/62 , B01J2523/828 , C07C233/03 , C07C233/15 , C07C233/25 , C07C233/43 , C07C233/07 , C07C255/58
摘要: N-Aryl or N-heteroarylformamides are prepared by hydrogenating a corresponding nitroarene or nitroheteroarene with formic acid and/or ammonium formate as hydrogen donor and formylating agent in the presence of at least one noble metal-based hydrogenation catalyst and a vanadium or molybdenum compound as co-catalyst.
摘要翻译: 通过在至少一种基于贵金属的氢化催化剂和钒或钼化合物的存在下,将相应的硝基芳烃或硝基芳烃与甲酸和/或甲酸铵作为氢供体和甲酰化剂氢化来制备N-芳基或N-杂芳基酰胺, 助催化剂。
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公开(公告)号:US07268255B2
公开(公告)日:2007-09-11
申请号:US10546291
申请日:2004-02-19
IPC分类号: C07C233/03 , C07C231/02 , C07D235/04
CPC分类号: B01J23/22 , B01J21/18 , B01J23/002 , B01J23/28 , B01J23/38 , B01J23/40 , B01J27/045 , B01J2523/00 , C07C231/10 , C07C253/30 , C07D235/08 , B01J2523/62 , B01J2523/828 , C07C233/03 , C07C233/15 , C07C233/25 , C07C233/43 , C07C233/07 , C07C255/58
摘要: N-Aryl or N-heteroarylformamides are prepared by hydrogenating a corresponding nitroarene or nitroheteroarene with formic acid and/or ammonium formate as hydrogen donor and formylating agent in the presence of at least one noble metal-based hydrogenation catalyst and a vanadium or molybdenum compound as co-catalyst.
摘要翻译: 通过在至少一种基于贵金属的氢化催化剂和钒或钼化合物的存在下,将相应的硝基芳烃或硝基芳烃与甲酸和/或甲酸铵作为氢供体和甲酰化剂氢化来制备N-芳基或N-杂芳基酰胺, 助催化剂。
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