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公开(公告)号:CA2436939C
公开(公告)日:2007-10-09
申请号:CA2436939
申请日:2001-12-07
Applicant: DAICEL CHEM
Inventor: ISHII YASUTAKA , KAJIKAWA YASUTERU
Abstract: A process of the present invention produces a corresponding dicarboxylic acid by oxidative cleavage of a cycloalkane with oxygen and performs a reaction in the presence of a catalyst including an imide compound and a metallic compound, the imide compound having a cyclic imide skeleton represented by following Formula (I): wherein X is an oxygen atom or an-OR group, and wherein R is a hydrogen atom or a hydroxyl-protecting group, under conditions of a reaction temperature of 80.degree.C or higher and a concentration of the cycloalkane in a system of 21% by weight or more. The imide compound includes, for example, N-hydroxyphthalimide. The amount of the imide compound is, for example, from about 0.000001 to about 0.01 mole per mole of the cycloalkane. In the production of a corresponding dicarboxylic acid by catalytic oxidation of a cycloalkane with oxygen, the present invention can yield the dicarboxylic acid in a high space time yield even using a small amount of the catalyst.
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公开(公告)号:DE69934948T2
公开(公告)日:2007-06-06
申请号:DE69934948
申请日:1999-03-23
Applicant: DAICEL CHEM
Inventor: ISHII YASUTAKA , NAKANO TATSUYA
IPC: C07B41/00 , B01J31/02 , B01J31/20 , B01J31/22 , C07B33/00 , C07B41/12 , C07D301/06 , C07D303/04 , C07D303/14 , C07D303/16 , C07D315/00
Abstract: The present invention relates to a process for the production of esters or lactones, and to a process for the production of peroxides.
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公开(公告)号:DE60024216T2
公开(公告)日:2006-06-01
申请号:DE60024216
申请日:2000-04-07
Applicant: DAICEL CHEM
Inventor: ISHII YASUTAKA , FUNAKI YOSHINORI , NAKANO TATSUYA
Abstract: An invented method for the surface modification of a molded plastic treats a molded plastic with an oxygen-atom-containing gas such as oxygen, carbon monoxide, a nitrogen oxide, or a sulfur oxide in the presence of N-hydroxyphthalimide or another imide compound represented by the following formula (1): wherein R and R are each, identical to or different from each other, a hydrogen atom, a halogen atom, an alkyl group, an aryl group, a cycloalkyl group, a hydroxyl group, an alkoxy group, a carboxyl group, an alkoxycarbonyl group, or an acyl group, or R and R may be combined to form a double bond or an aromatic or non-aromatic ring; X is an oxygen atom or a hydroxyl group. An invented method for modifying a polymer treats a polymer with an oxygen-atom-containing gas such as oxygen, carbon monoxide, a nitrogen oxide, or a sulfur oxide in the presence of the imide compound represented by the formula (1).
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公开(公告)号:DE60109786T2
公开(公告)日:2005-08-18
申请号:DE60109786
申请日:2001-07-18
Applicant: DAICEL CHEM
Inventor: ISHII YASUTAKA , NAKANO TATSUYA , INOUE KEIZO
IPC: C07D307/32 , C07D307/935 , C07D309/30 , C07D307/93
Abstract: A process of the present invention produces a hydroxylactone by subjecting an unsaturated carboxylic acid having a double bond not conjugated to a carboxyl group or an ester thereof to (i) a reaction with hydrogen peroxide in the presence of a metallic compound containing a metallic element selected from W, Mo, V and Mn or (ii) a reaction with a peroxide containing the metallic element to thereby yield a corresponding hydroxylactone having a hydroxyl group combined with one of carbon atoms constituting the double bond and being cyclized at the other carbon atom position. The metallic compound may be one selected from oxides, oxoacids and salts thereof. The unsaturated carboxylic acid includes, for example, beta , gamma -unsaturated carboxylic acids, gamma , delta -unsaturated carboxylic acids, and delta , epsilon -unsaturated carboxylic acids. The process can produce hydroxylactones in high yields at low cost.
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公开(公告)号:DE60300280T2
公开(公告)日:2005-06-30
申请号:DE60300280
申请日:2003-03-07
Applicant: DAICEL CHEM
Inventor: ISHII YASUTAKA , NAKANO TATSUYA
IPC: C07B61/00 , C07C249/00 , C07C249/04 , C07C249/16 , C07C251/42 , C07C251/44 , C07C251/88
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公开(公告)号:DE60012240D1
公开(公告)日:2004-08-26
申请号:DE60012240
申请日:2000-01-25
Applicant: DAICEL CHEM
Inventor: ISHII YASUTAKA , NAKANO TATSUYA
IPC: B01J27/08 , C07B61/00 , C07D263/04 , C07D263/52
Abstract: A process produces 1,3-oxazolidine derivatives by reacting an imine derivative of the following formula (1): with an epoxy compound of the following formula (2): to yield an oxazolidine derivative of the following formula (3): A compound of Group 3 elements of the Periodic Table of Elements, or other metallic compounds can be used as a catalyst. In the formulae, R , R , R , R , R , and R are each, independently, a hydrogen atom, a hydrocarbon group, or a heterocyclic group, and R is a hydrogen atom, a hydrocarbon group, a heterocyclic group, a hydroxyl group, a substituted oxy group, or an amino group which may have a substituent, where a combination of R and R , R and R , R and R , or R and R may be combined to form a ring with the adjacent carbon atom or carbon-carbon bond. The process can easily yield 1,3-oxazolidine derivatives from readily available materials.
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公开(公告)号:DE69729229D1
公开(公告)日:2004-06-24
申请号:DE69729229
申请日:1997-02-06
Applicant: DAICEL CHEM
Inventor: ISHII YASUTAKA , NAKANO TATSUYA
IPC: B01J31/02 , B01J31/12 , B01J31/22 , C07C29/50 , C07C45/33 , C07C45/34 , C07C45/36 , C07C49/453 , C07C49/675 , C07C51/265 , C07C51/31
Abstract: The present invention relates to an oxidation catalytic system which comprises an imide compound and a co-catalyst comprising a compound containing a Group 7A element of the Periodic Table of Elements, and a compound containing a Group 8 element of the Periodic Table of Elements. The present invention further relates to a process for oxidation which comprises the step of contacting a substrate with oxygen in the presence of said oxidation catalytic system.
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公开(公告)号:DE69818206T2
公开(公告)日:2004-04-01
申请号:DE69818206
申请日:1998-12-11
Applicant: DAICEL CHEM
Inventor: ISHII YASUTAKA , NAKANO TATSUYA
IPC: B01J27/10 , B01J27/122 , B01J27/125 , B01J27/128 , B01J27/132 , B01J27/135 , B01J31/22 , C07B61/00 , C07C51/08 , C07C59/01 , C07C59/48 , C07C253/00 , C07C253/16 , C07C255/14 , C07C255/16 , C07C253/08
Abstract: The present invention relates to a process for the preparation of compounds of formula (4) wherein a carbonyl compound of the formula (3) is reacted in the presence of a cyanogenation agent with an enol ester of the formula (1) or with an oxime ester of the formula (2): wherein R through R have meanings given in the application. The compound of formula (4) can be hydrolysed to obtain the corresponding compound of formula (5):
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公开(公告)号:ES2199340T3
公开(公告)日:2004-02-16
申请号:ES97902584
申请日:1997-02-06
Applicant: DAICEL CHEM
Inventor: ISHII YASUTAKA , NAKANO TATSUYA
IPC: B01J31/02 , B01J31/12 , B01J31/22 , C07C29/50 , C07C45/33 , C07C45/34 , C07C45/36 , C07C49/453 , C07C49/675 , C07C51/265 , C07C51/31
Abstract: The present invention relates to an oxidation catalytic system which comprises an imide compound and a co-catalyst comprising a compound containing a Group 7A element of the Periodic Table of Elements, and a compound containing a Group 8 element of the Periodic Table of Elements. The present invention further relates to a process for oxidation which comprises the step of contacting a substrate with oxygen in the presence of said oxidation catalytic system.
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公开(公告)号:DE69805744D1
公开(公告)日:2002-07-11
申请号:DE69805744
申请日:1998-12-14
Applicant: DAICEL CHEM
Inventor: ISHII YASUTAKA , NAKANO TATSUYA
IPC: B01J27/135 , B01J31/22 , C07B61/00 , C07C227/18 , C07C227/20 , C07C229/28 , C07C229/48 , C07C253/08 , C07C255/46 , C07C255/64
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