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公开(公告)号：US5543548A
公开(公告)日：1996-08-06
申请号：US273548
申请日：1994-07-11
IPC分类号： C07B61/00 , C07C31/04 , C07C68/00 , C07C68/08 , C07C69/96 , C07C201/04 , C07C203/00
CPC分类号： C07C68/00
摘要： Dimethyl carbonate (DMC) is prepared by continuous gas reaction of carbon monoxide and methyl nitrite a heterogeneous catalyst comprising a platinum at 50.degree. to 170.degree. C. under 1 to 5 bar.
摘要翻译： 通过一氧化碳和亚硝酸甲酯的连续气相反应制备碳酸二甲酯（DMC），该催化剂在1至5巴下在50至170℃下包含铂。
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公开(公告)号：US5449806A
公开(公告)日：1995-09-12
申请号：US272497
申请日：1994-07-08
摘要： Dialkyl carbonates can be prepared by reacting carbon monoxide with alkyl nitrites in a continuous gas phase reaction in the presence of a catalyst using a fixed bed reactor with a short catalyst bed in the direction of flow. The dialkyl carbonates are formed with almost quantitative selectivity; thermal decomposition of the alkyl nitrite, with the resulting formation of decomposition products, is not observed.
摘要翻译： 碳酸二烷基酯可以通过在催化剂存在下在连续气相反应中使一氧化碳与烷基亚硝酸盐反应来制备，所述催化剂使用在流动方向上具有短催化剂床的固定床反应器。 以几乎定量的选择性形成碳酸二烷基酯; 没有观察到亚硝酸烷基酯的热分解，从而形成分解产物。
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23.发明授权Process for the preparation of aromatic amines which are substituted by C.sub.1 -C.sub.4 -alkoxy in the p-position 失效用于制备在对位被C 1 -C 4 - 烷氧基取代的芳族胺的方法
公开(公告)号：US5304680A
公开(公告)日：1994-04-19
申请号：US728909
申请日：1991-07-10
IPC分类号： B01J23/40 , C07B61/00 , C07C209/36 , C07C213/00 , C07C217/84 , C07C217/94
CPC分类号： C07C213/00 , C07C209/365
摘要： Aromatic amines which are substituted by C.sub.1 -C.sub.4 -alkoxy in the p-position are prepared by catalytic hydrogenation of the underlying aromatic nitro compounds in a reaction medium comprising sulphuric acid and a C.sub.1 -C.sub.4 -alcohol by a Bamberger type rearrangement at elevated temperature, advantageously by carrying out the catalytic hydrogenation under elevated pressure.
摘要翻译： 通过在升高的温度下通过Bamberger型重排在包含硫酸和C 1 -C 4醇的反应介质中催化氢化下面的芳族硝基化合物来制备在p位上被C 1 -C 4 - 烷氧基取代的芳族胺， 有利地通过在升高的压力下进行催化氢化。
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公开(公告)号：US5231213A
公开(公告)日：1993-07-27
申请号：US910475
申请日：1992-07-08
CPC分类号： C07C68/00 , Y02P20/582
摘要： Dialkyl carbonates can be prepared by reaction of carbon monoxide with alkyl nitrites in continuous gas phase reaction, in which a platinum metal halide catalyst on aluminum oxides, aluminum oxide hydrates or aluminum hydroxides as support and, if desired, an additive comprising an antimony, bismuth, aluminum, copper, vanadium, niobium, tantalum, tin, iron, cobalt, nickel compound or a mixture of a plurality thereof on this catalyst are used and hydrogen halide is replaced during the course of the reaction batchwise or continuously in at least the amount which is discharged from the reactor together with the reaction mixture. This results in the formation of dialkyl carbonates in almost quantitative selectivity, while the corresponding dialkyl oxalates can not in most cases be detected. The abovementioned supports are characterized by a BET surface area of more than 1 m.sup.2 /g.
摘要翻译： 碳酸二烷基酯可以通过在连续气相反应中一氧化碳与亚硝酸烷基酯的反应来制备，其中在氧化铝上的铂金属卤化物催化剂，作为载体的氧化铝水合物或氢氧化铝，以及如果需要，包含锑，铋 在该催化剂上使用铝，铜，钒，铌，钽，锡，铁，钴，镍化合物或其多种混合物，并且在反应过程中间歇或连续地以至少量的量替换卤化氢 其与反应混合物一起从反应器排出。 这导致几乎定量选择性形成碳酸二烷基酯，而在大多数情况下相应的草酸二烷基酯不能被检测到。 上述载体的特征在于BET表面积大于1m 2 / g。
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25.发明授权公开(公告)号：US06465658B2
公开(公告)日：2002-10-15
申请号：US09907320
申请日：2001-07-17
IPC分类号： C07D24908
CPC分类号： C07D231/12 , C07D233/54 , C07D235/06 , C07D249/08
摘要： This invention relates to the preparation of N,N′-carbonyldiazoles in a particularly advantageous manner by reacting corresponding azolide salts with phosgene in an aromatic compound or an ether as solvent. The azolide salts are preferably prepared by a novel process from an azole that is reacted with a compound of the formula M′R7 or MgR8Z′ in the presence of a solvent.
摘要翻译： 本发明涉及以特别有利的方式通过使芳基化合物或醚作为溶剂使相应的吡唑盐与光气反应制备N，N'-羰基二唑。 所述唑类盐优选通过在溶剂存在下与来自式M'R7或MgR8Z'的化合物反应的唑的新方法制备。
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公开(公告)号：US06448455B1
公开(公告)日：2002-09-10
申请号：US09935024
申请日：2001-08-22
申请人： Paul Wagner , Alexander Klausener
发明人： Paul Wagner , Alexander Klausener
IPC分类号： C07C2726
摘要： The invention relates to a process for preparing trimethylolpropane with simultaneous formation of formate salts of the formula M(OOCH)n (I), where M represents the alkali metals lithium, sodium, potassium, rubidium, caesium and/or the alkaline earth metals beryllium, calcium, strontium, barium and n is 1 when M is an alkali metal and is 2 when M is an alkaline earth metal, where n-butyraldehyde, formaldehyde and a base are reacted by the inorganic Cannizzaro process and the reaction mixture formed is subjected to vapour pressure filtration as a suspension, if appropriate after partly removing distillable constituents, such as water.
摘要翻译： 本发明涉及一种三羟甲基丙烷的制备方法，同时形成甲酸盐的甲酸盐M代表碱金属锂，钠，钾，铷，铯和/或碱土金属铍，钙，锶，钡和n为1 当M是碱金属时，当M是碱土金属时为2，其中正丁醛，甲醛和碱通过无机Cannizzaro法反应，形成的反应混合物作为悬浮液进行蒸气压过滤，如果合适 部分去除可蒸馏成分，如水。
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公开(公告)号：US06198007B1
公开(公告)日：2001-03-06
申请号：US09546511
申请日：2000-04-11
IPC分类号： C07C20500
CPC分类号： C07C201/12 , C07C205/37
摘要： Provided is a process for the preparation of specific 1-substituted 2,4-dinitrobenzenes by reaction of 1-halogeno-2,4-dinitrobenzenes with mono-alkali metal salts of specific diols, in which the 1-halogeno-2,4-dinitrobenzene and the mono-alkali metal salt of the diol are simultaneously added and reacted.
摘要翻译： 提供了通过1-卤代-2,4-二硝基苯与特定二醇的单碱金属盐反应来制备特定的1-取代的2,4-二硝基苯的方法，其中1-卤代-2,4-二硝基苯与特定二醇的单碱金属盐反应， 二硝基苯和二醇的单碱金属盐同时加入并反应。
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公开(公告)号：US5484903A
公开(公告)日：1996-01-16
申请号：US941495
申请日：1992-09-08
摘要： The invention relates to a process for the production of carbonic acid esters of polysaccharides which is characterized in that polysaccharides are reacted with carbonic acid esters.
摘要翻译： 本发明涉及一种生产多糖碳酸酯的方法，其特征在于多糖与碳酸酯反应。
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29.发明授权Amino and ammonium isocyanates, a process for their preparation, their use for the production of polymers containing ammonium groups and the polymers thus produced 失效氨基和铵异氰酸酯，其制备方法，它们用于生产含铵基团的聚合物和由此制备的聚合物的用途
公开(公告)号：US5310849A
公开(公告)日：1994-05-10
申请号：US875622
申请日：1992-04-28
IPC分类号： C07D295/12 , C07C263/06 , C07C263/16 , C07C265/04 , C07D295/185 , C08G18/08 , C08G18/71 , C08G18/70
CPC分类号： C07D295/185 , C07C265/04 , C08G18/0814 , C08G18/714
摘要： The present invention relates to new amino and ammonium isocyanates, to a process for their preparation, e.g. by the reaction of certain ureas with isocyanates, and to the use of the new substances for the production of polymers containing ammonium groups.
摘要翻译： 本发明涉及新的氨基和铵异氰酸酯，其制备方法，例如 通过某些脲与异氰酸酯的反应，以及使用这些新物质来生产含铵基团的聚合物。
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公开(公告)号：US5254693A
公开(公告)日：1993-10-19
申请号：US788007
申请日：1991-11-05
IPC分类号： A01N43/74 , C07D277/32 , C07D277/34 , C07D277/42 , C07D277/56 , C07D263/38 , C07D263/48
CPC分类号： C07D277/42 , A01N43/74 , C07D277/56
摘要： Fungicidal substituted acrylic esters of the formula ##STR1## in which R.sup.1 represents hydrogen, alkyl or alkenyl, or represents in each case optionally substituted aralkyl, aralkenyl, aryl or heteroaryl,R.sup.2 represents halogen, cyano, nitro, formyl, halogenoalkyl, alkoxyalkyl or alkylthioalkyl, or represents hydroximinoalkyl, alkoximinoalkyl, N-alkyliminoalkyl, N-aryliminoalkyl or N,N-dialkylhydrazonoalkyl, or represents alkoxy, alkylthio, halogenoalkoxy or halogenoalkylthio, or represents aryloxy or arylthio, or represents alkanoyl, alkoxycarbonyl, N,N-dialkylcarbamoyl or heterocyclylcarbonyl,R.sup.3 represents alkyl, or represents optionally substituted aralkyl,R.sup.4 represents dialkylamino or represents a radical --Z--R.sup.5,X represents oxygen or sulphur andY represents oxygen or sulphur or represents a radical ##STR2## where R.sup.5 represents alkyl or represents optionally substituted aralkyl,R.sup.6 represents hydrogen, alkyl or alkanoyl, or represents in each case optionally substituted aralkyl or aryl, andZ represents oxygen or sulphur.
摘要翻译： 式（I）的杀真菌取代的丙烯酸酯，其中R 1表示氢，烷基或烯基，或在每种情况下表示任选取代的芳烷基，芳烯基，芳基或杂芳基，R 2表示卤素，氰基，硝基，甲酰基，卤代烷基， 烷氧基烷基或烷硫基烷基，或代表肟基烷基，烷肟基烷基，N-烷基亚氨基烷基，N-芳基亚氨基烷基或N，N-二烷基肼基烷基，或代表烷氧基，烷硫基，卤代烷氧基或卤代烷硫基，或代表芳氧基或芳硫基，或代表烷酰基，烷氧羰基，N， 二烷基氨基甲酰基或杂环基羰基，R3代表烷基，或代表任意取代的芳烷基，R4代表二烷基氨基或代表基团-Z-R5，X代表氧或硫，Y代表氧或硫，或代表基团，其中R5代表烷基或代表 任选取代的芳烷基，R 6表示氢，烷基或烷酰基，或在每种情况下表示任选取代的芳烷基 R芳基，Z表示氧或硫。
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