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1. 发明专利

JPH07291915A PRODUCTION OF 1,4-DICYANOBUTENES 失效
公开(公告)号：JPH07291915A
公开(公告)日：1995-11-07
申请号：JP11178694
申请日：1994-04-28
申请人： MITSUBISHI CHEM CORP
发明人： YAMAGATA NAOKO , MAKI TAKAO
IPC分类号： C07C253/30 , C07B61/00 , C07C255/04
摘要： PURPOSE:To high selectively produce a 1,4-dicyanobutene with industrial advantage by conducting dimerization of acrylonitrile in the presence of a phosphinite or phosphonite catalyst and in the coexistence a carbamic acid derivative. CONSTITUTION:This production of a 1,4-dicyanobutene is carried out by dimerizing acrylonitrile in the presense of a phosphinite catalyst or a phosphonite catalyst and in the coexistence of a carbamic acid derivative of the formula I (R is an alkyl, a cycloalkyl or an aryl; R' is H, an alkyl, a cycloalkyl or an aryl; a ring may be formed from R and R'). As the catalyst, a compound of the formula II or the formula III (R to R , R to R ), e.g. methyldiphenyl phosphinite or diethylphenyl phosphonite is preferably used. In addition, a phosphinite catalyst is preferably used in view of stability of the catalyst. Since the dimerization is inhibited by water, the content of water is reduced recommendably to about 100ppm by a satisfactory drying treatment. This method is free from clogging and advantageous in view of operations.

2. 发明专利

JPH08176040A PRODUCTION OF CYCLOALKANOL 失效
公开(公告)号：JPH08176040A
公开(公告)日：1996-07-09
申请号：JP31502094
申请日：1994-12-19
申请人： MITSUBISHI CHEM CORP
发明人： MORIYASU MASATAKA , SETOYAMA TORU , TAKEWAKI TAKAHIKO , YAMAGUCHI TAKAHIRO , FUJITA NAOKO , MAKI TAKAO
IPC分类号： B01J29/40 , B01J29/87 , C07B61/00 , C07C29/04 , C07C35/08
摘要： PURPOSE: To obtain the subject compound in high yield and facilitate separation and purification of the compound by carrying out hydration reaction of a cycloalkene in the coexistence of fluorobenzoic acid when the cycloalkene is hydrated in the presence of a solid acid catalyst. CONSTITUTION: This compound is obtained by hydrogenating a cycloalkene (preferably having 5-8 membered ring) in the coexistence of a solid acid catalyst (preferably H type gallosilicate) and fluorobenzoic acid (preferably fluorobenzoic acid having >=2 fluorine atoms, e.g. 2,3-difluorobenzoic aid). The weight ratio of the catalyst to the cycloalkane is preferably 0.05-20 and the amount of fluorobenzoic acid added is preferably 0.05-2mol per mol of the cycloalkene. The molar ratio of water to the cycloalkene is preferably 1-30. Furthermore, hydration reaction is preferably carried out in an inert gas atmosphere having

3. 发明专利

JPH07258130A PRODUCTION OF CYCLOALKANOL 失效
公开(公告)号：JPH07258130A
公开(公告)日：1995-10-09
申请号：JP5187594
申请日：1994-03-23
申请人： MITSUBISHI CHEM CORP
发明人： TAKEWAKI TAKAHIKO , YOKOYAMA TOSHIHARU , MAKI TAKAO
IPC分类号： B01J21/16 , C07B61/00 , C07C29/04 , C07C35/02
摘要： PURPOSE:To obtain a cycloalkanol in an industrially advantageous way by hydration of a cycloalkene in the presence of a specifically treated ion exchange- type lamellar substance. CONSTITUTION:The cycloalkanol is obtained by hydration of a cycloalkene in the presence of an ion exchange-type lamellar substance treated with at least one kind of metal compound selected from those of Al, Si, Ti and Zr. The lamellar substance can be obtained by contact treatment of the original substance with at least one kind of metal compound selected from those of Al, Si, Ti and Zr in a liquid phase (esp. pref. in the presence of a nitrogen-contg. compound) followed by baking. The ion exchange-type lamellar substance is pref. smectite, kaolinite or vermiculite.

4. 发明专利

JPH08176041A PRODUCTION OF CYCLOALKANOL 失效
公开(公告)号：JPH08176041A
公开(公告)日：1996-07-09
申请号：JP31856894
申请日：1994-12-21
申请人： MITSUBISHI CHEM CORP
发明人： MORIYASU MASATAKA , SETOYAMA TORU , TAKEWAKI TAKAHIKO , YAMAGUCHI TAKAHIRO , FUJITA NAOKO , MAKI TAKAO
IPC分类号： B01J29/87 , C07B61/00 , C07C29/04 , C07C35/08
摘要： PURPOSE: To obtain the subject compound in high yield and facilitate separation and purification of the compound by carrying out hydration reaction of a cycloalkene in the coexistence of a benzoic acid derivative having a specific substituent group when the cycloalkene is hydrated in the presence of a solid acid catalyst. CONSTITUTION: In hydrating a cycloalkene (preferably having 5-8-membered ring) in the presence of a solid acid catalyst (preferably H type gallosilicate having a pentane structure), benzoic acid (preferably 2-benzoylbenzoic acid) having a substituent group selected from an alkoxy, an aryloxy, an alkylcarbonyl, an arylcarbonyl, an alkyloxycarbonyl, an aryloxycarbonyl, an aryl and an aryl alkyl is added to the reactional system. The benzoic acid is used in an amount of 0.05-2mol per mol of cycloalkene when an organic solvent is not used. Furthermore, the hydration reaction is preferably carried out at 80 160 deg.C for 0.5-5hr under 0.2-2MPa pressure in an inert gas atmosphere having

5. 发明专利

JPH07291916A PRODUCTION OF 1,4-DICYANOBUTENES 失效
公开(公告)号：JPH07291916A
公开(公告)日：1995-11-07
申请号：JP11178794
申请日：1994-04-28
申请人： MITSUBISHI CHEM CORP
发明人： YAMAGATA NAOKO , MAKI TAKAO
IPC分类号： B01J31/02 , C07B61/00 , C07C253/30 , C07C255/09
摘要： PURPOSE:To highly selectively produce a 1,4-dicyanobutene while inhibiting formation of a polymer by-product by conducting dimerization of acrylonitrile in the presence of a specified phosphinite or phosphinite catalyst in a proton- donating solvent. CONSTITUTION:This production of a 1,4-dicyanobutene is carried out by conducting a dimerization reaction of acrylonitrile in the presence of a phosphinite catalyst or a phosphonite catalyst of the formula I or II (R , R and R are an aryl, an alkyl or a cycloalkyl; R , R and R are an aryl, an alkyl or a cycloalkyl) in a proton-donating organic solvent. Especially in the case a phosphinite catalyst or a phosphonite catalyst satisfying R =R in the formula I or II is used as the catalyst, a compound of the formula III, especially a compound of the formula IV (R and R are each an alkyl, etc.; R to R are H, an alkyl, etc.) is recommendably used as the above-mentioned organic solvent. In addition, a substituted bisphenol having substituent groups at least at 3,3',5 and 5' 3positions, especially a compound of formula V (R , R , R and R are each an alkyl, etc.; R to R are H, an alkyl, etc.) is recommendably used as the above-mentioned organic solvent.

6. 发明专利

JPH07215900A PRODUCTION OF CYCLOHEXANOL 失效
公开(公告)号：JPH07215900A
公开(公告)日：1995-08-15
申请号：JP1295294
申请日：1994-02-04
申请人： MITSUBISHI CHEM CORP
发明人： YOKOYAMA TOSHIHARU , MORIYASU MASATAKA , YAMAGUCHI TAKAHIRO , MAKI TAKAO
IPC分类号： B01J23/30 , B01J27/188 , C07B61/00 , C07C29/10 , C07C35/08
摘要： PURPOSE:To provide a method capable of producing cyclohexanol in high yield from dicyclohexyl ether, readily carrying out separation between a water phase and an organic phase of a reactional liquid and simplified also in separation process of a catalyst and industrially excellent. CONSTITUTION:The characteristic of this method for producing cyclohexanol comprises carrying out hydrolysis in a weight ratio of water/a heteropolyacid of 0.1-1.0 at 100-150 deg.C in hydrolyzing phenylcyclohexyl ether in the presence of the heteropolyacid and water.

7. 发明专利

JPH07285892A PRODUCTION OF CYCLOOLEFIN 失效
公开(公告)号：JPH07285892A
公开(公告)日：1995-10-31
申请号：JP29859194
申请日：1994-12-01
申请人： MITSUBISHI CHEM CORP
发明人： TAKEWAKI TAKAHIKO , FUJITA NAOKO , YOKOYAMA TOSHIHARU , MAKI TAKAO
IPC分类号： B01J23/46 , C07B61/00 , C07C5/11 , C07C13/20
摘要： PURPOSE:To produce a cycloolefin in high selectivity and efficiency by partially hydrogenating a monocyclic hydrocarbon in the presence of a catalyst produced by supporting ruthenium on a zirconia-modified silica carrier. CONSTITUTION:A monocyclic aromatic hydrocarbon (e.g. benzene) is partially hydrogenated preferably at 100-220 deg.C under hydrogen pressure of 0.5-10MPa in the presence of water and a catalyst produced by supporting ruthenium on a silica carrier modified with zirconia. The zirconia-modified silica carrier is preferably produced by supporting 0.5-10wt.% of zirconia on spherical silica e.g. by impregnation supporting method and drying and baking the product. The specific surface area of the spherical silica is 5-150m /g and the volume ratio of the pores of 350-1,500Angstrom to the pores of 75-150,000Angstrom is >=55%. The maximum intensity of the relative intensity of ruthenium in the catalyst is preferably

8. 发明专利

JPH07247232A PRODUCTION OF CYCLOALKANOL OR CYCLOALKANONE 失效
公开(公告)号：JPH07247232A
公开(公告)日：1995-09-26
申请号：JP3816394
申请日：1994-03-09
申请人： MITSUBISHI CHEM CORP
发明人： MORIYASU MASATAKA , TAKEWAKI TAKAHIKO , MAEDA KOJI , YOKOYAMA TOSHIHARU , MAKI TAKAO
IPC分类号： C07C29/04 , C07B61/00 , C07C35/02 , C07C35/08 , C07C45/29 , C07C49/21 , C07C49/385
摘要： PURPOSE:To provide a method for producing a cycloalkanone from a cycloalkene by a simple and economic process in high yield without requiring excessive separation. CONSTITUTION:A cycloalkene is hydrated in the presence of a cycloalkanone in the weight ratio of the cycloalkanone to the cycloalkene of 0.001-100, especially 0.05-3 by using a zeolite catalyst at 50-300 deg.C, especially 80-160 deg.C to give a mixture of a cycloalkanol and the cycloalkanone. The mixture obtained by the reaction is directly dehydrogenated as it is or the cycloalkanone is separated and the resulting substance is dehydrogenated to give a mixture having a high content of the cycloalkanone. The cycloalkanone is separated from the mixture, at least part of the cycloalkanone is circulated through a hydration reaction process. Or, the mixture obtained by the dehydration reaction and the mixture obtained by the hydration reaction are joined, the cycloalkanone is separated, at least one of the cycloalkanone is circulated through the hydration reaction process and the mixture separated from the cycloalkanone is dehydrogenated.

9. 发明专利

JPH07215897A METHOD FOR SIMULTANEOUSLY PRODUCING CYCLOHEXANOL, CYCLOHEXENE AND PHENOLS 失效
公开(公告)号：JPH07215897A
公开(公告)日：1995-08-15
申请号：JP1295394
申请日：1994-02-04
申请人： MITSUBISHI CHEM CORP
发明人： YOKOYAMA TOSHIHARU , MORIYASU MASATAKA , YAMAGUCHI TAKAHIRO , MAKI TAKAO
IPC分类号： B01J27/188 , C07B61/00 , C07C1/20 , C07C13/20 , C07C27/00 , C07C29/10 , C07C35/08 , C07C37/06 , C07C39/04
摘要： PURPOSE:To provide a method capable of producing cyclohexanol in high yield from phenylcyclohexyl ether, readily carrying out separation between a water phase and an organic phase of a reactional liquid and simplified also in separation process of a catalyst and industrially excellent. CONSTITUTION:The characteristic of this method for simultaneously producing cyclohexanol, cyclohexene and phenols comprises hydrolyzing phenylcyclohexyl ether at 100-150 deg.C in the presence of a heteropolyacid and water.

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