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1.发明授权
公开(公告)号：US4492792A
公开(公告)日：1985-01-08
申请号：US461191
申请日：1983-01-26
申请人： Kozo Fujii , Keigo Nishihira , Hiroyuki Sawada , Shuji Tanaka , Mamoru Nakai , Hiroshi Yoshida , Teruhiko Inoue
发明人： Kozo Fujii , Keigo Nishihira , Hiroyuki Sawada , Shuji Tanaka , Mamoru Nakai , Hiroshi Yoshida , Teruhiko Inoue
IPC分类号： C07D239/42 , C07D317/32 , C07D239/02
CPC分类号： C07D239/42 , C07C255/00
摘要： A process for preparing a 4-amino-5-dialkoxymethylpyrimidine derivative of the formula: ##STR1## which comprises reacting a propanenitrile derivative represented by the formula (I) or the novel compound represented by formula (II): ##STR2## with an amidine of the formula: ##STR3## wherein R.sup.1 to R.sup.6 are as defined in the specification. Also disclosed is a process for making the novel compounds of formula (II).
摘要翻译： 制备下式的4-氨基-5-二烷氧基甲基嘧啶衍生物的方法：包括使由式（I）表示的丙腈衍生物或由式（II）表示的新化合物：（I） （II），其具有下式的脒：其中R 1至R 6如说明书中所定义。 还公开了制备式（II）的新型化合物的方法。
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2.发明授权
公开(公告)号：US4539403A
公开(公告)日：1985-09-03
申请号：US461163
申请日：1983-01-26
申请人： Kozo Fujii , Keigo Nishihira , Hiroyuki Sawada , Shuji Tanaka , Mamoru Nakai , Hiroshi Yoshida , Teruhiko Inoue , Kiyosi Oomori
发明人： Kozo Fujii , Keigo Nishihira , Hiroyuki Sawada , Shuji Tanaka , Mamoru Nakai , Hiroshi Yoshida , Teruhiko Inoue , Kiyosi Oomori
IPC分类号： C07D239/42 , C07D239/02
CPC分类号： C07D239/42
摘要： There is disclosed a process for the preparation of a 2-alkyl-4-amino-5-aminomethylpyrimidine, which comprises subjecting a 2-alkyl-4-amino-5-formylpyrimidine to catalytic reaction with hydrogen and ammonia in the presence of a reduction catalyst.According to the process of this invention, the desired product can be obtained in much higher yield as compared with the processes known to the art.
摘要翻译： 公开了2-烷基-4-氨基-5-氨基甲基嘧啶的制备方法，该方法包括使2-烷基-4-氨基-5-甲酰基嘧啶在还原反应的存在下与氢和氨进行催化反应 催化剂。 根据本发明的方法，与本领域已知的方法相比，可以以更高的收率获得所需产物。
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3.发明授权
公开(公告)号：US4421925A
公开(公告)日：1983-12-20
申请号：US375203
申请日：1982-05-05
申请人： Sumio Umemura , Kozo Fujii , Keigo Nishihira , Hiroyuki Sawada , Shuji Tanaka , Mamoru Nakai , Hiroshi Yoshida , Yoshiaki Kuroki
发明人： Sumio Umemura , Kozo Fujii , Keigo Nishihira , Hiroyuki Sawada , Shuji Tanaka , Mamoru Nakai , Hiroshi Yoshida , Yoshiaki Kuroki
IPC分类号： C07D319/06
CPC分类号： C07D319/06
摘要： There are disclosed a 4-alkoxy-1,3-dioxane-5-carbonitrile which is a novel compound represented by the formula ##STR1## wherein R represents a lower-alkyl group, and which is useful as an intermediate for the synthesis of Vitamin B.sub.1, and a process for preparing the novel compound by subjecting a 3-alkoxy-2-propenenitrile to reaction with a formaldehyde in the presence of an acid catalyst.
摘要翻译： 公开了4-烷氧基-1,3-二恶烷-5-腈，它是由下式表示的新化合物：其中R代表低级烷基，可用作合成维生素的中间体 B1和通过在酸催化剂存在下使3-烷氧基-2-丙烯腈与甲醛反应来制备新化合物的方法。
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公开(公告)号：US4229591A
公开(公告)日：1980-10-21
申请号：US938358
申请日：1978-08-31
摘要： A process for preparing a diester of oxalic acid which comprises bringing carbon monoxide into contact with an ester of nitrous acid or with an alcohol and a nitrogen oxide or a hydrate of the nitrogen oxide in the gaseous phase in the presence of a solid catalyst containing metallic palladium or a salt thereof, a gas containing molecular oxygen being introduced into the reaction system in cases where said nitrogen oxide or a hydrate of the nitrogen oxide requires molecular oxygen together with the alcohol to form an ester of nitrous acid.
摘要翻译： 一种制备草酸二酯的方法，其包括在含有金属的固体催化剂的存在下，使一氧化碳与亚硝酸的酯或醇和氮氧化物或氮氧化物的水合物在气相中接触， 钯或其盐，在所述氮氧化物或氮氧化物的水合物与醇一起需要分子氧以形成亚硝酸酯的情况下，将含有分子氧的气体引入反应体系。
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公开(公告)号：US4467109A
公开(公告)日：1984-08-21
申请号：US495460
申请日：1983-05-19
CPC分类号： C07C69/36
摘要： There is provided a process for the continuous preparation of a diester of oxalic acid, which comprises a first step of reacting carbon monoxide with an ester of nitrous acid in the gaseous phase; a second step of condensing the gaseous reaction mixture to separate a non-condensed gas from a condensed liquid containing the diester of oxalic acid; a third step of introducing the non-condensed gas of the second step to a regeneration column, thereby contacting it with a gas containing molecular oxygen and an alcohol, and recycling the resulting gas containing an ester of nitrous acid to the reactor of the first step; a fourth step of distilling out an alcohol containing a diester of carbonic acid formed as a by-product of the first step and obtaining a liquid diester of oxalic acid; and a fifth step of introducing the distillate of the fourth step to a hydrolysis column thereby hydrolyzing the diester of carbonic acid in the gas and recycling the alcohol as an alcohol source for the third step.
摘要翻译： 提供了一种用于连续制备草酸二酯的方法，其包括使一氧化碳与亚硝酸酯在气相中反应的第一步骤; 冷凝气态反应混合物以从含有草酸二酯的冷凝液分离非冷凝气体的第二步骤; 将第二步骤的非冷凝气体引入再生塔的第三步骤，由此使其与含有分子氧和醇的气体接触，并将产生的含有亚硝酸酯的气体再循环到第一步骤的反应器 ; 第四步骤，蒸馏出含有作为第一步副产物的碳酸二酯的醇，得到草酸的液体二酯; 以及第五步骤，将第四步骤的馏出物引入水解塔，由此使气体中的碳酸二酯水解并再循环醇作为第三步的醇源。
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公开(公告)号：US4461909A
公开(公告)日：1984-07-24
申请号：US495459
申请日：1983-05-19
CPC分类号： C07C69/36
摘要： There is provided a process for the continuous preparation of a diester of oxalic acid which comprises a first step of reacting carbon monoxide with an ester of nitrous acid in the gaseous phase; a second step of condensing the gaseous reaction mixture to separate a non-condensed gas from a condensed liquid containing the diester of oxalic acid; a third step of introducing the non-condensed gas of the second step to a regeneration column and thereby contacting it with a gas containing molecular oxygen and an alcohol to regenerate nitrogen monoxide in the non-condensed gas into an ester of nitrous acid so as to bring the concentration of nitrogen monoxide in the gas at the outlet of the column to a level of from 2 to 7% by volume; and a fourth step of recycling the gas of the third step containing the ester of nitrous acid and from 2 to 7% by volume of nitrogen monoxide to the reactor of the first step.
摘要翻译： 提供了一种用于连续制备草酸二酯的方法，该方法包括使一氧化碳与亚硝酸酯在气相中反应的第一步骤; 冷凝气态反应混合物以从含有草酸二酯的冷凝液分离非冷凝气体的第二步骤; 将第二步骤的非冷凝气体引入再生塔的第三步骤，由此使其与含有分子氧和醇的气体接触，以将非冷凝气体中的一氧化氮再生成亚硝酸酯，以便 使塔的出口处的气体中的一氧化氮浓度达到2〜7体积％的水平; 以及将含有亚硝酸酯和2〜7体积％一氧化氮的第三步骤的气体再循环到第一步骤的反应器的第四步骤。
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公开(公告)号：US4260810A
公开(公告)日：1981-04-07
申请号：US52341
申请日：1979-06-27
申请人： Sumio Umemura , Kanenobu Matsui , Yoshinari Ikeda , Katsuro Masunaga , Takumi Kadota , Kozo Fujii , Keigo Nishihira , Masaoki Matsuda
发明人： Sumio Umemura , Kanenobu Matsui , Yoshinari Ikeda , Katsuro Masunaga , Takumi Kadota , Kozo Fujii , Keigo Nishihira , Masaoki Matsuda
IPC分类号： B01J23/00 , C07B61/00 , C07C67/36 , C07C67/38 , C07C69/34 , C07C69/36 , C07C69/40 , C07C69/612 , C07C69/75
CPC分类号： C07C67/38
摘要： A process for preparing a diester of a dicarboxylic acid having two more carbon atoms than the unsaturated hydrocarbon used as a starting material, which comprises subjecting an unsaturated hydrocarbon, carbon monoxide and an ester of nitrous acid to catalytic vapor phase reaction at a temperature of 50.degree. to 200.degree. C. in the presence of a platinum group metal or a salt thereof and a halogen compound.
摘要翻译： 制备具有比用作原料的不饱和烃多两个碳原子的二羧酸的二酯的方法，该方法包括使不饱和烃，一氧化碳和亚硝酸酯在50℃的温度下进行催化气相反应 在铂族金属或其盐和卤素化合物的存在下，将其加热至200℃。
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公开(公告)号：US4229589A
公开(公告)日：1980-10-21
申请号：US938343
申请日：1978-08-31
申请人： Kenji Nishimura , Shinichiro Uchiumi , Kozo Fujii , Keigo Nishihira , Masayoshi Yamashita , Hiroshi Itatani
发明人： Kenji Nishimura , Shinichiro Uchiumi , Kozo Fujii , Keigo Nishihira , Masayoshi Yamashita , Hiroshi Itatani
摘要： A process for preparing a diester of oxalic acid which comprises bringing carbon monoxide into contact with an ester of nitrous acid in the liquid phase, in the presence of metallic palladium or a salt thereof, preferably with introduction of a gas containing molecular oxygen into the reaction system, more preferably with further incorporation of an alcohol in the reaction system.
摘要翻译： 一种制备草酸二酯的方法，其包括在金属钯或其盐的存在下使一氧化碳与亚硝酸的酯在液相中接触，优选在反应中引入含有分子氧的气体 系统，更优选在反应体系中进一步引入醇。
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公开(公告)号：USRE31245E
公开(公告)日：1983-05-17
申请号：US293932
申请日：1981-08-18
申请人： Kozo Fujii , Keigo Nishihira , Masaoki Matsuda , Shinichiro Uchiumi , Kenji Nishimura, deceased
发明人： Kozo Fujii , Keigo Nishihira , Masaoki Matsuda , Shinichiro Uchiumi , Kenji Nishimura, deceased
摘要： A process for preparing a diester of oxalic acid which comprises bringing carbon monoxide into contact with an ester of nitrous acid or with an alcohol and a nitrogen oxide or a hydrate of the nitrogen oxide in the gaseous phase in the presence of a solid catalyst containing metallic palladium or a salt thereof, a gas containing molecular oxygen being introduced into the reaction system in cases where said nitrogen oxide or a hydrate of the nitrogen oxide requires molecular oxygen together with the alcohol to form an ester of nitrous acid.
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公开(公告)号：US4256908A
公开(公告)日：1981-03-17
申请号：US50762
申请日：1979-06-21
申请人： Kenji Nishimura , Shinichi Furusaki , Yasushi Shiomi , Kozo Fujii , Keigo Nishihira , Masayoshi Yamashita
发明人： Kenji Nishimura , Shinichi Furusaki , Yasushi Shiomi , Kozo Fujii , Keigo Nishihira , Masayoshi Yamashita
CPC分类号： C07C67/46
摘要： A process for preparing a diester of malonic acid which comprises reacting ketene and carbon monoxide with an ester of nitrous acid catalytically in the presence of metallic palladium or a salt thereof.
摘要翻译： 一种制备丙二酸二酯的方法，其包括在金属钯或其盐的存在下，将乙烯酮和一氧化碳与亚硝酸酯催化反应。
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