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71. 发明专利

JP2000327617A DISTILLATION OF OXYSTYRENE DERIVATIVE 失效
公开(公告)号：JP2000327617A
公开(公告)日：2000-11-28
申请号：JP32715599
申请日：1999-11-17
申请人： TOSOH CORP
发明人： ISHIKAWA SHINICHI , SOGA SHINICHI , EGUCHI HISAO
IPC分类号： C07C41/42 , C07B63/04 , C07C41/46 , C07C43/215 , C07C67/54 , C07C67/62 , C07C69/157
摘要： PROBLEM TO BE SOLVED: To enable the distillation of an oxystyrene derivative in a high recovery rate and not forming a polymeric material by distilling the oxystyrene derivative by adding a specific polymerization inhibitor. SOLUTION: This method for distilling an oxystyrene derivative of the formula (R is an alkyl, aryl, arylalkyl or the like) comprises distilling it by adding a nitroso compound (preferably N-nitrosophenylhydroxylamine and/or its salt) and/or a nitro compound (preferably dinitrophenol) as a polymerization inhibitor. As the derivative of the formula, e.g. p-tertiary butoxy styrene and p- acetoxystyrene, useful as a resist raw material can be cited. Further, the adding amount of the polymerization inhibitor is preferably 1-100,000 ppm based on the oxystyrene derivative. Also, the distillation temperature is preferably 20-200 deg.C. Thereby, it becomes possible to distil the oxystyrene derivative in a high recovery rate.

72. 发明专利

JP3111557B2 失效
公开(公告)号：JP3111557B2
公开(公告)日：2000-11-27
申请号：JP30749491
申请日：1991-11-22
IPC分类号： B01J31/04 , B01J21/10 , B01J23/04 , B01J27/04 , B01J27/232 , B01J31/02 , C07B61/00 , C07C67/08 , C07C69/017 , C07C69/157

73. 发明专利

JP2000281621A PRODUCTION OF PHENYL ESTER 失效
公开(公告)号：JP2000281621A
公开(公告)日：2000-10-10
申请号：JP9143599
申请日：1999-03-31
申请人： TOSOH CORP
发明人： MORI YOSHIHIKO
IPC分类号： B01J23/644 , C07B61/00 , C07C67/055 , C07C69/157
摘要： PROBLEM TO BE SOLVED: To provide an industrially advantageous method for producing a phenyl ester in high activity and in a high selectivity in producing the phenyl ester by reacting benzene with a carboxylic acid and molecular oxygen. SOLUTION: In this method for producing a phenyl ester by reacting benzene with a carboxylic acid and molecular oxygen, the phenyl acetate is produced in high activity in high selectivity by using a catalyst which has the ratio of antimony/palladium of 0.3-0.4 and in which palladium and antimony are in a metal state as a catalyst on which palladium and antimony are supported.

74. 发明专利

JP3012574B2 失效
公开(公告)号：JP3012574B2
公开(公告)日：2000-02-21
申请号：JP26827897
申请日：1997-10-01
IPC分类号： B01J27/02 , B01J27/06 , B01J27/24 , C07B61/00 , C07C45/54 , C07C45/63 , C07C67/297 , C07C69/157 , C08F8/12 , C08F12/00 , C08F12/14 , C08F112/14

75. 发明专利

JPH11322671A PRODUCTION OF 3-ACETOXYCYCLOHEXENE 失效
公开(公告)号：JPH11322671A
公开(公告)日：1999-11-24
申请号：JP13742598
申请日：1998-05-06
申请人： ASAHI CHEMICAL IND
发明人： ONO MITSUJI , TSUNEMATSU YOSHIYUKI
IPC分类号： C07C67/055 , C07B61/00 , C07C69/157
摘要： PROBLEM TO BE SOLVED: To provide a method for producing 3-acetoxycyclohexene, capable of simply and profitably producing the 3-acetoxycyclohexene useful as a raw material for organic industrial chemicals in high selectivity in a state facilitating the separation of the reaction mixture components, while reducing the by- production of high boiling point compounds needing their disposal treatments. SOLUTION: This method for producing 3-acetoxycyclohexene comprises the following processes using cyclohexene as a raw material and comprising: (1) reacting the cyclohexene with acetic acid and oxygen in the presence of a palladium-based carried solid catalyst in a liquid phase to produce a mixture comprising the 3-acetoxycyclohexene, the cyclohexene and benzene, (2) separating the cyclohexene and the benzene as a mixture from the produced mixture, (3) separating the mixture of the cyclohexene and the benzene obtained in the process (2) by an extraction distillation operation, and subsequently recycling the cyclohexene to the process (1).

76. 发明专利

JP2845349B2 失效
公开(公告)号：JP2845349B2
公开(公告)日：1999-01-13
申请号：JP51946196
申请日：1995-12-04
IPC分类号： A61K31/66 , A23L2/38 , A23L7/152 , A61K31/12 , A61K31/121 , A61K31/215 , A61K31/23 , A61K47/24 , A61P35/00 , A61P43/00 , C07C49/248 , C07C49/82 , C07C69/017 , C07C69/157 , C07C69/16 , C07C69/24 , C07C69/28 , C07C69/52 , C07C69/533 , C07F9/10 , A23L1/172

77. 发明专利

JPH10273474A PRODUCTION OF 2-HYDROXY-1-INDANONE DERIVATIVE AND OPTICALLY ACTIVE 2-ACETOXY-1-INDANONE 失效
公开(公告)号：JPH10273474A
公开(公告)日：1998-10-13
申请号：JP9299797
申请日：1997-03-27
申请人： NIPPON STEEL CORP , NIPPON STEEL CHEMICAL CO
发明人： JODAI HIROSHI , MITAMURA SHUICHI , HIYAMA TAMEJIROU
IPC分类号： C07C57/46 , C07C59/00 , C07C67/28 , C07C68/06 , C07C69/157 , C07C69/96
摘要： PROBLEM TO BE SOLVED: To produce the subject compound useful as a synthetic intermediate for a drug, etc., by reacting 3-phenyl lactic acid derivative with a halogenation agent, and further reacting the product with an acid. SOLUTION: A 3-phenyl lactic acid derivative of formula I (R is an acyl or an alkoxycarbonyl) is reacted with a halogenation agent such as phosphorus pentachloride to provide an acid halide compound of formula II (X is Cl or Br). Further, the acid halide compound is reacted with a Lewis acid and/or a protonic acid in a solvent such as dichloromethane at (-70)-150 deg.C to provide a 2-hydroxy-1-indanone derivative of formula III in the method for producing the 2-hydroxy-1-indanone derivative. Aluminum chloride, etc., are used as the Lewis acid, and polyphosphoric acid, etc., are used as the protonic acid. The compound of formula III in which R is an acetyl is an optical isomer of (S)- or (R)-2-acetoxy-1-indanone, and useful as an intermediate for a drug for AIDS. The objective compound is readily obtained by an industrial process for mass- production by using the method.

78. 发明专利

JPH10265436A SELECTIVE ACYLATION OF BIPHENYL COMPOUND 失效
公开(公告)号：JPH10265436A
公开(公告)日：1998-10-06
申请号：JP8571797
申请日：1997-03-19
申请人： ARAKAWA CHEM IND
发明人： ONISHI SHINICHI , KIMURA HIROSHI
IPC分类号： B01J27/125 , C07B41/06 , C07B61/00 , C07C67/14 , C07C67/313 , C07C69/157 , C07C69/28
摘要： PROBLEM TO BE SOLVED: To o produce a compound, having the p-position of the biphenyl ring selectively acylated in a Friedel-Crafts acylating reaction and useful as an intermediate raw material for liquid crystals, etc., by protecting OH group of a biphenyl compound with acetyl group in advance. SOLUTION: An acetylating reaction of 4hydroxybiphenyl is carried out by using an acetylating reagent, e.g. acetyl chloride in an amount of usually about 1-1.2 mol based on 1 mol 4hydroxybiphenyl in the presence of pyridine in order to improve the reactional time, yield, etc., to thereby provide a compound in which the OH group of the 4hydroxybiphenyl is protected with acetyl group. The compound obtained by the reaction is then reacted with an acylating agent represented by the formula RCOX (R is a hydrocarbon; X is a halogen) in the presence of a Lewis acid in a solvent such as CH2 Cl2 or CS2 at usually about -20 to +10 deg.C reactional temperature for several hr to some ten hr, usually about 5-10 hr reactional time to afford the objective compound represented by the formula in which the p-position of the biphenyl ring is acylated.

79. 发明专利

JP2727675B2 失效
公开(公告)号：JP2727675B2
公开(公告)日：1998-03-11
申请号：JP21663389
申请日：1989-08-22
申请人： SUMITOMO KAGAKU KOGYO KK
发明人： KURIMOTO ISAO , AZUMAI TAKAYUKI , TODA SHOJI , MINAMII MASAYOSHI , IMAMURA KYOSHI
IPC分类号： C07C41/26 , C07C43/178 , C07C43/23 , C07C45/61 , C07C49/84 , C07C69/157

80. 发明专利

JPH10500677A 失效
公开(公告)号：JPH10500677A
公开(公告)日：1998-01-20
申请号：JP53011295
申请日：1995-04-26
IPC分类号： A01N65/00 , A01N31/08 , A01N35/06 , A01N37/02 , A01N65/08 , A01P3/00 , A01P7/00 , A01P7/02 , A01P7/04 , C07C46/00 , C07C46/10 , C07C50/14 , C07C50/32 , C07C69/013 , C07C69/157

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