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公开(公告)号:US4599421A
公开(公告)日:1986-07-08
申请号:US601342
申请日:1984-04-17
IPC分类号: C07D213/08 , C07D213/09 , C07D213/64 , C07D211/88
CPC分类号: C07D213/08 , C07D213/64
摘要: Pyridone-2 compounds are prepared by reacting an oxoalkanecarboxylic acid having as general formula ##STR1## where R.sub.2 and R.sub.3 represent hydrogen or an alkyl group having 1-4 C atoms, or an ester of such an acid in the gas phase with an amine compound R.sub.1 NH.sub.2,where R.sub.1 represents hydrogen or an alkyl group with 1-4 C atoms, at a temperature of 250.degree.-450.degree. C. in the presence of a dehydrogenating catalyst.
摘要翻译: 吡啶酮-2化合物通过使具有通式为“IMAGE”的氧代烷基羧酸(其中R 2和R 3表示氢或具有1-4个C原子的烷基)或这种酸的酯在气相中与胺化合物 R1NH2,其中R1表示氢或1-4C原子的烷基,在脱氢催化剂存在下,在250-450℃的温度下进行。
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公开(公告)号:US4560760A
公开(公告)日:1985-12-24
申请号:US646049
申请日:1984-08-31
申请人: Roland E. van der Stoel , Marcel A. R. Bosma , Petrus H. J. Janssen , Cornelis G. M. van de Moesdijk
发明人: Roland E. van der Stoel , Marcel A. R. Bosma , Petrus H. J. Janssen , Cornelis G. M. van de Moesdijk
IPC分类号: C07D201/08
CPC分类号: C07D201/08 , Y02P20/52
摘要: Disclosed is a process for preparing a lactam which consists essentially in the reductive amination in the gas phase of an oxoalkane carboxylic acid having the formula ##STR1## or an alkyl ester thereof, wherein R is an alkyl group having from 1 to 4 carbon atoms and n varies from 2 to 3, and wherein the reaction is carried out:A. in an atmosphere of hydrogen, andB. in the presence of a gas phase reactant selected from the group consisting of gaseous ammonia and a vaporized primary amine, andC. in the presence of a hydrogenation catalyst promoted with an alkali metal.The alkali metal particularly preferred as a promoter is sodium.
摘要翻译: 公开了一种制备内酰胺的方法,该方法主要包括在具有下式的氧代烷烃羧酸或其烷基酯的气相中还原胺化,其中R是具有1至4个碳原子的烷基和 n在2至3之间变化,并且其中反应在氢气氛和氢气氛中进行:A.在选自气态氨和汽化伯胺的气相反应物存在下,和C 在用碱金属促进的氢化催化剂存在下进行。 特别优选的碱金属作为助催化剂是钠。
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公开(公告)号:US4730043A
公开(公告)日:1988-03-08
申请号:US812812
申请日:1985-12-23
IPC分类号: B01J23/00 , B01J27/00 , C07B61/00 , C07D239/26
CPC分类号: C07D239/26
摘要: Alkylpyrimidines are dealkylated to the corresponding pyrimidines by contacting with an oxidation catalyst containing one or more oxides of at least one of the elements of the group consisting of Bi, Mo and V in the presence of water and oxygen in the gas phase at a temperature of 300.degree.-450.degree. C.
摘要翻译: 烷基嘧啶通过在气相中在水和氧的存在下与在含有一种或多种Bi,Mo和V的元素中的至少一种元素的一种或多种氧化物的氧化催化剂接触而脱苄基化至相应的嘧啶,温度为 300°-450℃
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公开(公告)号:US4473699A
公开(公告)日:1984-09-25
申请号:US377139
申请日:1982-05-11
IPC分类号: C07B61/00 , C07D209/08
CPC分类号: C07D209/08 , Y02P20/582
摘要: Indole, and/or methyl-substituted indoles are described as prepared from the corresponding 2-(cyanomethyl)cyclohexanone starting material through a catalytic reaction in the presence of hydrogen, using a metal, or metal compound, of Group VIII or Group Ib of the Periodic Table. The reaction is carried out at an elevated temperature at high conversion to yield the corresponding indole and (in some cases) tetra- or hexahydroindoles.
摘要翻译: 吲哚和/或甲基取代的吲哚被描述为由相应的2-(氰基甲基)环己酮原料通过催化反应在氢气存在下使用金属或金属化合物,VIII族或Ib族的Ib 周期表。 反应在高转化率的高温下进行,得到相应的吲哚和(在某些情况下)四 - 或六氢吲哚。
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公开(公告)号:US4639525A
公开(公告)日:1987-01-27
申请号:US671308
申请日:1984-11-14
IPC分类号: C07D213/127 , C07D213/64
CPC分类号: C07D213/64
摘要: Process for the preparation of 2-pyridone in the gas phase comprising contacting 6-methyl-2-pyridone with a metallic dealkylation catalyst in the presence of water at a temperature of 200.degree.-500.degree. C.
摘要翻译: 在气相中制备2-吡啶酮的方法,包括在水存在下,在200-500℃的温度下使6-甲基-2-吡啶酮与金属脱烷基化催化剂接触。
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公开(公告)号:US4485243A
公开(公告)日:1984-11-27
申请号:US383961
申请日:1982-06-01
IPC分类号: B01J23/00 , B01J23/40 , B01J23/58 , B01J23/72 , B01J23/74 , C07B61/00 , C07D207/32 , C07D207/323 , C07D291/04
CPC分类号: C07D207/323
摘要: A process is described for the catalytic gas phase reduction of 4-oxoalkanenitriles to form 2-alkylpyrroles in high yields and conversions.
摘要翻译: 描述了用于4-氧代链烷腈的催化气相还原以高产率和转化形成2-烷基吡咯的方法。
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公开(公告)号:US4719299A
公开(公告)日:1988-01-12
申请号:US785998
申请日:1985-10-10
IPC分类号: B01J23/58 , C07D239/26
CPC分类号: C07D239/26 , B01J23/58
摘要: Process for preparing pyrimidine by reacting in the gas phase 1,3-diaminopropane with a C.sub.1 reagent in the presence of an excess of methanol and/or carbon monoxide and of a metallic catalyst, wherein the reaction is carried out in the presence of a palladium catalyst promoted with an alkali metal and subsequently from the resulting reaction mixture pyrimidine is recovered.
摘要翻译: 通过在气相1,3-二氨基丙烷与C1试剂在过量的甲醇和/或一氧化碳和金属催化剂存在下反应制备嘧啶的方法,其中反应在钯的存在下进行 用碱金属促进催化剂,随后从所得反应混合物中回收嘧啶。
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