公开(公告)号：DE3843792A1

公开(公告)日：1990-07-05

申请号：DE3843792

申请日：1988-12-24

Applicant: BASF AG

Inventor： MERGER FRANZ DR ,  FISCHER ROLF DR ,  HARDER WOLFGANG DR ,  PRIESTER CLAUS-ULRICH DR ,  VAGT UWE DR

IPC: B01J23/46 ,  C07B61/00 ,  C07C227/04 ,  C07C227/08 ,  C07C229/08

公开(公告)号：DE3760333D1

公开(公告)日：1989-08-24

申请号：DE3760333

申请日：1987-03-14

Applicant: BASF AG

Inventor： KUMMER RUDOLF DR ,  VAGT UWE DR ,  FISCHER ROLF DR ,  SEUFERT WALTER DR ,  BECKER RAINER DR

IPC: C07C69/533 ,  C07C67/00 ,  C07C67/03 ,  C07C67/475 ,  C07C69/52

Abstract: Alkenecarboxylates of the formula I I where R1 is alkyl of 1 to 6 carbon atoms and n is 2, 3 or 4, are prepared by a process which comprises reacting a lactone of the formula II II where R2 is hydrogen or methyl and m is 1 or 2, with an alkanol of 1 to 6 carbon atoms in the presence of an acidic catalyst at from 150 DEG to 400 DEG C.

公开(公告)号：DE3710805A1

公开(公告)日：1988-10-20

申请号：DE3710805

申请日：1987-03-31

Applicant: BASF AG

Inventor： BECKER RAINER DR ,  ECKHARDT HEINZ DR ,  FISCHER ROLF DR ,  SPIEGLER WOLFGANG DR ,  VAGT UWE DR

IPC: C07D309/08

Abstract: A process for the preparation of esters of tetrahydropyran-4-carboxylic acid of the general formula I, where R1 is an alkyl, cycloalkyl, or aryl group, by treating butyrolactones of the general formula II, where R2 is a hydrogen atom, an alkyl group, or an acyl group -CO-R3, R3 being a hydrogen atom or an alkyl group with from 1 to 6 carbon atoms, with alcohols of the general formula III at temperatures of from 150 DEG C. to 400 DEG C. in the presence of acid catalysts.

公开(公告)号：DE3643011A1

公开(公告)日：1988-06-30

申请号：DE3643011

申请日：1986-12-17

Applicant: BASF AG

Inventor： DOCKNER TONI DR ,  SAUERWALD MANFRED DR ,  FISCHER ROLF DR ,  HUTMACHER HANS-MARTIN DR ,  PRIESTER CLAUS-ULRICH DR ,  VAGT UWE DR

IPC: C07D201/08 ,  C07D201/16 ,  C07D213/10

Abstract: In an improved process for preparing caprolactam by heating 6-aminocaproic acid, an ester or amide or mixture thereof in the presence of an inert reaction medium which is liquid under the reaction conditions and has a boiling point above that of caprolactam, the improvement comprises using as the reaction medium a hydrocarbon, maintaining a temperature of from 150 DEG to 350 DEG C., charging the 6-aminocaproic acid, ester, amide or mixture thereof at a rate commensurate with their rate of conversion, and separating caprolactam from the reaction mixture at a rate commensurate with its rate of formation.

公开(公告)号：DE3609139A1

公开(公告)日：1987-09-24

申请号：DE3609139

申请日：1986-03-19

Applicant: BASF AG

Inventor： FISCHER ROLF DR ,  VAGT UWE DR

IPC: C07C69/533 ,  C07C67/00 ,  C07C67/475 ,  C07C69/52 ,  C07C67/03

Abstract: 4-Pentenoates of the formula I where R is alkyl of from 1 to 6 carbon atoms, are prepared by a process in which 5-methylbutyrolactone of the formula I is reacted with an alcohol of the formula R-O-H III, where R has the above meaning, at from 150 DEG to 400 DEG C. in the presence of an acidic catalyst.

公开(公告)号：ES2050211T3

公开(公告)日：1994-05-16

申请号：ES89123436

申请日：1989-12-19

Applicant: BASF AG

Inventor： MERGER FRANZ DR ,  FISCHER ROLF DR ,  HARDER WOLFGANG DR ,  PRIESTER CLAUS-ULRICH DR ,  VAGT UWE DR

IPC: B01J23/46 ,  C07B61/00 ,  C07C227/04 ,  C07C227/08 ,  C07C229/08

公开(公告)号：DE58907182D1

公开(公告)日：1994-04-14

申请号：DE58907182

申请日：1989-12-19

Applicant: BASF AG

Inventor： MERGER FRANZ DR ,  FISCHER ROLF DR ,  HARDER WOLFGANG DR ,  PRIESTER CLAUS-ULRICH DR ,  VAGT UWE DR

IPC: B01J23/46 ,  C07B61/00 ,  C07C227/04 ,  C07C227/08 ,  C07C229/08

公开(公告)号：DE59002817D1

公开(公告)日：1993-10-28

申请号：DE59002817

申请日：1990-07-25

Applicant: BASF AG

Inventor： NEUBAUER GERALD DR ,  RITZ JOSEF DR ,  AGAR DAVID DR ,  FISCHER ROLF DR ,  VAGT UWE DR ,  FUCHS HUGO DR

IPC: C07D223/10 ,  C07D201/16

Abstract: Caprolactam is purified continuously by passing a 75-95% strength by weight aqueous caprolactam solution together with hydrogen at 50 DEG -95 DEG C. and 1.5-100 bar upward through a fixed-bed supported palladium or nickel catalyst in a tubular zone while maintaining a residence time of from 10 to 100 min.

公开(公告)号：DE3783814D1

公开(公告)日：1993-03-11

申请号：DE3783814

申请日：1987-06-23

Applicant: BASF AG

Inventor： DECKER MARTIN DR ,  FISCHER ROLF DR ,  FRANZISCHKA WOLFGANG DR ,  KUMMER RUDOLF DR ,  SCHNEIDER HEINZ-WALTER DR ,  VAGT UWE DR

IPC: C07C45/48 ,  C07C45/54 ,  C07C49/395 ,  C07C49/403 ,  C07C49/413

Abstract: Cyclic ketones of formula (I) are prepd. by reacting aliphatic dicarboxylic acid esters of formula R1OOC-(CH2)n-COOR2 at 150-450 deg. C, on solid oxide catalysts. (In the formulae n = 4-6; R1, R2 = 1-12C alkyl, 5-6C cycloalkyl, aralkyl or aryl, and R2 may also also = H). Oxides of Main gps. I-V of sub.gps. I-VIII, and of rare earths are pref. used as catalyst esp. MgO, Al2O3 (pref.), SiO2, ZnO or TiO2.

公开(公告)号：DE3779767D1

公开(公告)日：1992-07-23

申请号：DE3779767

申请日：1987-01-24

Applicant: BASF AG

Inventor： VAGT UWE DR ,  FISCHER ROLF DR ,  MERGER FRANZ DR ,  HUTMACHER HANS-MARTIN DR

IPC: C07C51/09 ,  C07C59/147 ,  C07C67/00 ,  C07C227/00 ,  C07C227/04 ,  C07C227/08 ,  C07C229/06 ,  C07C229/08

Abstract: (i). 5-formyl-valeric acid ester is reacted with water in the presence of acidic materials at 30-200 deg.C. (ii). The 5-formyl valeric acid obtd. is reacted with excess NH3 and H2 in the presence of hydrogenation catalysts, in solvents which are inert under the reaction conditions, at 50-150 deg.C, under increased pressure.