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1. 发明专利

GB2136809A PROCESS FOR PRODUCING AMINOALKYLSULFONIC ACIDS 未知
公开(公告)号：GB2136809A
公开(公告)日：1984-09-26
申请号：GB8410801
申请日：1983-09-07
申请人： MITSUI TOATSU CHEMICALS
发明人： YAMAMOTO ISAMU , NOGUCHI YOSHIAKI , IWASAKI KOUZOU , ARAI KENICHI
IPC分类号： C07C309/14 , C07C143/14
摘要： PCT No. PCT/JP83/00301 Sec. 371 Date May 2, 1984 Sec. 102(e) Date May 2, 1984 PCT Filed Sep. 8, 1982 PCT Pub. No. WO84/00958 PCT Pub. Date Mar. 15, 1984.Disclosed herein is a process for preparing with a high yield an aminoalkylsulfonic acid represented by the following general formula: wherein R1, R2 and R3 are each a hydrogen atom, an alkyl group having 1-3 carbon atoms or a hydroxyl-containing alkyl group having 1-3 carbon atoms and n stands for an integer of 2 or 3, which process comprises reacting a sulfite with a halogenated alkylamine represented by the following general formula: wherein X means a chlorine, bromine or iodine atom, and R1, R2, R3 and n have the same meanings as defined above by adding the halogenated alkylamine little by little either continuously or intermittently over a certain period of time to a heated aqueous solution of the sulfite. The yield may be increased further when, after the addition of the halogenated alkylamine, the reaction is carried out by raising the reaction temperature stepwise in 2-5 stages while limiting the reaction time and temperature-raising range in each stage to 0.5-4 hours and 10 DEG -20 DEG C.

2. 发明专利

GB2136809B PROCESS FOR PRODUCING AMINOALKYLSULFONIC ACIDS 未知
公开(公告)号：GB2136809B
公开(公告)日：1985-12-04
申请号：GB8410801
申请日：1983-09-07
申请人： MITSUI TOATSU CHEMICALS
发明人： YAMAMOTO ISAMU , NOGUCHI YOSHIAKI , IWASAKI KOUZOU , ARAI KENICHI
IPC分类号： C07C309/14 , C07C143/14
摘要： PCT No. PCT/JP83/00301 Sec. 371 Date May 2, 1984 Sec. 102(e) Date May 2, 1984 PCT Filed Sep. 8, 1982 PCT Pub. No. WO84/00958 PCT Pub. Date Mar. 15, 1984.Disclosed herein is a process for preparing with a high yield an aminoalkylsulfonic acid represented by the following general formula: wherein R1, R2 and R3 are each a hydrogen atom, an alkyl group having 1-3 carbon atoms or a hydroxyl-containing alkyl group having 1-3 carbon atoms and n stands for an integer of 2 or 3, which process comprises reacting a sulfite with a halogenated alkylamine represented by the following general formula: wherein X means a chlorine, bromine or iodine atom, and R1, R2, R3 and n have the same meanings as defined above by adding the halogenated alkylamine little by little either continuously or intermittently over a certain period of time to a heated aqueous solution of the sulfite. The yield may be increased further when, after the addition of the halogenated alkylamine, the reaction is carried out by raising the reaction temperature stepwise in 2-5 stages while limiting the reaction time and temperature-raising range in each stage to 0.5-4 hours and 10 DEG -20 DEG C.

3. 发明专利

DE3390188T1 未知
公开(公告)号：DE3390188T1
公开(公告)日：1984-09-20
申请号：DE3390188
申请日：1983-09-07
申请人： MITSUI TOATSU CHEMICALS
发明人： YAMAMOTO ISAMU , NOGUCHI YOSHIAKI , IWASAKI KOUZOU , ARAI KENICHI
IPC分类号： C07C309/14 , C07C143/14 , C07C139/00
摘要： PCT No. PCT/JP83/00301 Sec. 371 Date May 2, 1984 Sec. 102(e) Date May 2, 1984 PCT Filed Sep. 8, 1982 PCT Pub. No. WO84/00958 PCT Pub. Date Mar. 15, 1984.Disclosed herein is a process for preparing with a high yield an aminoalkylsulfonic acid represented by the following general formula: wherein R1, R2 and R3 are each a hydrogen atom, an alkyl group having 1-3 carbon atoms or a hydroxyl-containing alkyl group having 1-3 carbon atoms and n stands for an integer of 2 or 3, which process comprises reacting a sulfite with a halogenated alkylamine represented by the following general formula: wherein X means a chlorine, bromine or iodine atom, and R1, R2, R3 and n have the same meanings as defined above by adding the halogenated alkylamine little by little either continuously or intermittently over a certain period of time to a heated aqueous solution of the sulfite. The yield may be increased further when, after the addition of the halogenated alkylamine, the reaction is carried out by raising the reaction temperature stepwise in 2-5 stages while limiting the reaction time and temperature-raising range in each stage to 0.5-4 hours and 10 DEG -20 DEG C.

4. 发明专利

DE3390188C2 未知
公开(公告)号：DE3390188C2
公开(公告)日：1987-07-23
申请号：DE3390188
申请日：1983-09-07
申请人： MITSUI TOATSU CHEMICALS
发明人： YAMAMOTO ISAMU , NOGUCHI YOSHIAKI , IWASAKI KOUZOU , ARAI KENICHI
IPC分类号： C07C309/14 , C07C143/14 , C07C139/00
摘要： PCT No. PCT/JP83/00301 Sec. 371 Date May 2, 1984 Sec. 102(e) Date May 2, 1984 PCT Filed Sep. 8, 1982 PCT Pub. No. WO84/00958 PCT Pub. Date Mar. 15, 1984.Disclosed herein is a process for preparing with a high yield an aminoalkylsulfonic acid represented by the following general formula: wherein R1, R2 and R3 are each a hydrogen atom, an alkyl group having 1-3 carbon atoms or a hydroxyl-containing alkyl group having 1-3 carbon atoms and n stands for an integer of 2 or 3, which process comprises reacting a sulfite with a halogenated alkylamine represented by the following general formula: wherein X means a chlorine, bromine or iodine atom, and R1, R2, R3 and n have the same meanings as defined above by adding the halogenated alkylamine little by little either continuously or intermittently over a certain period of time to a heated aqueous solution of the sulfite. The yield may be increased further when, after the addition of the halogenated alkylamine, the reaction is carried out by raising the reaction temperature stepwise in 2-5 stages while limiting the reaction time and temperature-raising range in each stage to 0.5-4 hours and 10 DEG -20 DEG C.

5. 发明公开

EP0119274A4 PROCESS FOR PRODUCING AMINOALKYLSULFONIC ACIDS. 失效
标题翻译： VERFAHREN ZUR HERSTELLUNG VONAMINOALKYLSULFONSÄUREN。
公开(公告)号：EP0119274A4
公开(公告)日：1985-03-06
申请号：EP83902903
申请日：1983-09-07
申请人： MITSUI TOATSU CHEMICALS
发明人： YAMAMOTO ISAMU , NOGUCHI YOSHIAKI , IWASAKI KOUZOU , ARAI KENICHI
IPC分类号： C07C309/14 , C07C143/14
CPC分类号： C07C303/02 , C07C309/14
摘要： A process for producing in a high yield aminoalkylsulfonic acids represented by the formula (I) wherein R1, R2, and R3 each represent hydrogen, C1-3 alkyl or hydroxy-containing C1-3 alkyl, X represents chlorine, bromine or iodine and n represents 2 or 3, which process comprises adding continuously or intermittently by portions over a certain period of time to a heated aqueous sulfite solution a alkylamine hydrohalide represented by the formula (II). The yield can be increased by conducting the reaction, after the addition of the alkylamine hydrohalide, in such a manner that the reaction temperature is stepwise raised in 2 to 5 steps in each of which the reaction time and the temperature-raising rate are set to 0.5 to 4 hours and 10 to 20oC/step, respectively.
摘要翻译：（I）表示的高收率氨基烷基磺酸的制备方法，其中R1，R2和R3各代表氢，C1-3烷基或含羟基的C1-3烷基，X代表氯，溴或碘，n 代表2或3，该方法包括在一段时间内连续或间歇地加入由式（II）表示的烷基胺氢卤化物的加热亚硫酸盐水溶液。通过在加入烷基胺氢卤化物后进行反应，以使反应温度在2至5个步骤中逐步升高，其中反应时间和升温速率分别设定为 0.5至4小时和10至20℃/步。

6. 发明专利

JPH06271517A PRODUCTION OF ACRYLIC OR METHACRYLIC ACID ALKYLAMINOALKYL ESTER 失效
公开(公告)号：JPH06271517A
公开(公告)日：1994-09-27
申请号：JP6360493
申请日：1993-03-23
申请人： MITSUI TOATSU CHEMICALS
发明人： MIZOGAMI KENJI , ARAI KENICHI , SENDA MITSUAKI , SAGAWA EIICHI , NODATE YOSHIHIRO
IPC分类号： C07B61/00 , C07C213/06 , C07C219/08
摘要： PURPOSE:To only to improve selectivity to a (meth)acrylic acid alkylaminoalkyl ester, but also to enable the decomposition of by-products into reaction-starting compounds and reduce the amount of wastes, when the objective compound is produced by transesterification of the reaction-staring compounds. CONSTITUTION:A method for producing a (meth)acrylic acid alkylaminoalkyl ester of formula III by transesterification of a (meth)acrylate ester of formula I (R1 is H, methyl; R2 is 1-4C alkyl) with an alkylaminoalcohol of formula II (R3 is alkylaminoalkyl) comprises adding a catalyst (e.g. potassium carbonate or tripotassium phosphate) to the reaction product after the reaction is finished, and reversily decomposing the resulting by-products (e.g. one or more kinds of compounds of formula IV-VII) into a lower aliphatic alcohol of formula: R OH and the compounds of formulas I and II and/or reproducing the objective product of formula III. The method enables to decompose 25-80% of the by- products and further to reduce the amount of the by-products of industrial wastes to 1/2 to 1/5 of the amount in a conventional method.

7. 发明专利

JPH0665162A METHOD FOR DECOLORING AND PURIFYING AMINOETHYL HALIDE MINERAL ACID SALTS 失效
公开(公告)号：JPH0665162A
公开(公告)日：1994-03-08
申请号：JP21778192
申请日：1992-08-17
申请人： MITSUI TOATSU CHEMICALS
发明人： KUWAZUKA TOSHIAKI , SEKI RYOICHI , ARAI KENICHI
IPC分类号： C07C209/84 , C07C211/15
摘要： PURPOSE:To purify an aqueous solution of an aminoethyl halide mineral acid salt containing a colored component simply and efficiently. CONSTITUTION:In decoloring and purifying an aminoethyl halide mineral acid salt obtained by synthesis from various raw materials such as chlorination of an amino-alcohol or chlorination of an ethyleneimine, an aqueous solution of the aminoethyl halide mineral acid salt is mixed with an organic solvent, especially a ketone and/or an ester as an extracting solvent and a colored component is extracted and separated to decolor and purify the aminoethyl halide mineral acid salt.

8. 发明专利

JPH01149771A PRODUCTION OF 4-METHYLIMIDAZOLE 失效
公开(公告)号：JPH01149771A
公开(公告)日：1989-06-12
申请号：JP30748987
申请日：1987-12-07
申请人： MITSUI TOATSU CHEMICALS
发明人： TAKEUCHI KOICHI , ARAI KENICHI , SENDA MITSUAKI , ITAKURA MITSUO , SHIOTANI NAOKAZU
IPC分类号： C07D233/58
摘要： PURPOSE:To obtain the title compound, by reacting methylglyoxal with formaldehyde and ammonia in the presence of ammonium sulfate, carrying out salt exchange, extracting the title compound with a water-insoluble organic solvent, then treating the extract with a basic anion exchange resin and distilling the resultant treated product. CONSTITUTION:Methylglyoxal is reacted with formaldehyde and ammonia in the presence of ammonium sulfate to provide 4-methylimidazole, which is then subjected to salt exchange using ammonia and subsequently extracted with a water-insoluble organic solvent, such as isobutanol. The resultant extract solution is then treated with a basic anion exchange resin and subsequently distilled to afford 4-methylimidazole of >=97% purity without carrying out special purification. Thereby the aimed high-purity 4-methylimidazole is obtained by a simplified process without any recognized contamination of acids.

9. 发明专利

JPH01149770A PRODUCTION OF 4-METHYLIMIDAZOLE 失效
公开(公告)号：JPH01149770A
公开(公告)日：1989-06-12
申请号：JP30748887
申请日：1987-12-07
申请人： MITSUI TOATSU CHEMICALS
发明人： TAKEUCHI KOICHI , ARAI KENICHI , SENDA MITSUAKI , ITAKURA MITSUO , SHIOTANI NAOKAZU
IPC分类号： C07D233/58
摘要： PURPOSE:To obtain the title compound, by reacting methylglyoxal with formaldehyde and ammonia in the presence of ammonium sulfate, carrying out a salt exchange reaction of the resultant product, extracting the resultant title compound with a water insoluble organic solvent, treating the extracted title compound with an alkali metal hydroxide and distilling the treated title compound. CONSTITUTION:Methylglyoxal is reacted with formaldehyde and ammonia in the presence of ammonium sulfate to afford sulfate of 4-methylimidazole, which is subjected to salt exchange reaction using ammonia at

10. 发明专利

JPH01139569A PRODUCTION OF 4-METHYLIMIDAZOLE 失效
公开(公告)号：JPH01139569A
公开(公告)日：1989-06-01
申请号：JP29610587
申请日：1987-11-26
申请人： MITSUI TOATSU CHEMICALS
发明人： TAKEUCHI KOICHI , ARAI KENICHI , SENDA MITSUAKI , ITAKURA MITSUO , SHIOTANI NAOKAZU
IPC分类号： C07D233/58
摘要： PURPOSE:To obtain the title substance in high purity and yield, by dropping methylglyoxal and formaldehyde to an aqueous solution of ammonium sulfate and, after attaining pH having prescribed low range and carrying out the reaction while adding ammonia to reaction system so as to maintain the above- mentioned pH. CONSTITUTION:When methylglyoxal(MGX) is reacted with formaldehyde and ammonia in the presence of ammonium sulfate to provide the title substance, to an aqueous solution of ammonium sulfate a mixture of MGX and formaldehyde is dropped or MGX and formaldehyde are each simultaneously dropped and after pH becomes 2-4, the reaction is carried out at 70-80 deg.C for 2-5hr while adding ammonia so as to maintain the pH value. Production of 2,4- dimethylimidazole and dimer thereof which are by-products can be suppressed in simplified process by the above-mentioned method.

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