PRODUCTION OF N-ACYL DERIVATIVE AND DERIVATIVE OF THE SAME KIND

    公开(公告)号:JP2001072652A

    公开(公告)日:2001-03-21

    申请号:JP2000252489

    申请日:2000-08-23

    Applicant: BASF AG

    Abstract: PROBLEM TO BE SOLVED: To produce the subject compound in high yield by reacting a carboxamide with a glyoxal monoacetal derivative in the presence of a carboxylic acid. SOLUTION: (A) A carboxamide represented by the formula: R1-CONH2 [R1 is H, a 1-12C alkyl or a (substituted) aryl] is reacted with (B) a glyoxal monoacetal derivative represented by formula I [R2 is H, a 1-12C alkyl or a (substituted) aryl; R3 is a 1-12C alkyl] in the presence of (C) a carboxylic acid represented by the formula; R4-COOH (R4 is a 1-12C alkyl), preferably at 40-200 deg.C under 200-1,000 mbars to thereby produce a compound represented by formula II [X is CH(OR3)2 or COOR3]. In the above reaction, the components A and C are used in respective amounts of 250-800 mol% based on the component B. The ratio of the components A:C is preferably 1:1 expressed in terms of molar ratio.

    3.
    发明专利
    未知

    公开(公告)号:ES2188464T3

    公开(公告)日:2003-07-01

    申请号:ES00115618

    申请日:2000-07-20

    Applicant: BASF AG

    Abstract: Preparation of N-acyl derivatives (I) using readily available starting materials. N-acyl derivatives of formula R -C(O)N(H)C(R )X (I) are prepared by reacting, in the presence of a compound of formula R -COOH (II), a carbonic acid amide of formula R -CONH2 (III) and a glyoxalmonoacetal derivative of formula R C(O)C(OR )OR (IV). R , R = H or optionally substituted alkyl or aryl; R ,R = 1 - 12C alkyl; and X = CH(OR ) or COOR . An Independent claim is also included for a compound of formula R -C(O)N(H)C(R )C(OR )OR (V).

    PROCESS FOR PRODUCING CYCLOHEXANETRIONE CARBOXYLIC ACID THIOL ESTERS

    公开(公告)号:HU906442D0

    公开(公告)日:1991-04-29

    申请号:HU644290

    申请日:1990-10-12

    Applicant: BASF AG

    Abstract: Preparation of cyclohexanetrionecarboxylic acid thiol esters of the formula I in which R and R represent optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, benzyl or phenyl, and R additionally denotes hydrogen, by reacting a cyclohexanetrione compound II with hydroxylamine or hydroxylamine O-sulphonic acid in an inert solvent at temperatures from 0 to 150 DEG C to give cyclohexanetrione compounds III subsequently reacting the compounds III with a mercaptan IV R -SH IV in the presence of an anhydrous acid HX to give cyclohexanetrione imidothioester salts V where X represents the acid radical, and hydrolysing the compounds V to give the cyclohexanetrione carboxylic acid thiol esters I.

    PROCESS FOR PRODUCING CYCLOHEXANETRIONE-CARBOXYLIC ACID-THIOLESTERS

    公开(公告)号:HU205897B

    公开(公告)日:1992-07-28

    申请号:HU644290

    申请日:1990-10-12

    Applicant: BASF AG

    Abstract: Preparation of cyclohexanetrionecarboxylic acid thiol esters of the formula I in which R and R represent optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, benzyl or phenyl, and R additionally denotes hydrogen, by reacting a cyclohexanetrione compound II with hydroxylamine or hydroxylamine O-sulphonic acid in an inert solvent at temperatures from 0 to 150 DEG C to give cyclohexanetrione compounds III subsequently reacting the compounds III with a mercaptan IV R -SH IV in the presence of an anhydrous acid HX to give cyclohexanetrione imidothioester salts V where X represents the acid radical, and hydrolysing the compounds V to give the cyclohexanetrione carboxylic acid thiol esters I.

    PROCESS FOR PRODUCING CYCLOHEXANETRIONE CARBOXYLIC ACID THIOL ESTERS

    公开(公告)号:HUT54980A

    公开(公告)日:1991-04-29

    申请号:HU644290

    申请日:1990-10-12

    Applicant: BASF AG

    Abstract: Preparation of cyclohexanetrionecarboxylic acid thiol esters of the formula I in which R and R represent optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, benzyl or phenyl, and R additionally denotes hydrogen, by reacting a cyclohexanetrione compound II with hydroxylamine or hydroxylamine O-sulphonic acid in an inert solvent at temperatures from 0 to 150 DEG C to give cyclohexanetrione compounds III subsequently reacting the compounds III with a mercaptan IV R -SH IV in the presence of an anhydrous acid HX to give cyclohexanetrione imidothioester salts V where X represents the acid radical, and hydrolysing the compounds V to give the cyclohexanetrione carboxylic acid thiol esters I.

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