公开(公告)号：DE3663026D1

公开(公告)日：1989-06-01

申请号：DE3663026

申请日：1986-10-14

Applicant: BASF AG

Inventor： SPIEGLER WOLFGANG DR ,  GOETZ NORBERT DR ,  JAHN DIETER DR ,  FISCHER ROLF DR ,  KROPP RUDOLF

IPC: C07D407/06 ,  C07D309/06 ,  C07D309/10 ,  C07D309/30 ,  C07D317/00 ,  C07D319/00 ,  C07D407/04 ,  C07F7/18

公开(公告)号：DE3730186A1

公开(公告)日：1989-03-23

申请号：DE3730186

申请日：1987-09-09

Applicant: BASF AG

Inventor： KUMMER RUDOLF DR ,  SCHNEIDER HEINZ-WALTER DR ,  BERTLEFF WERNER DR ,  FISCHER ROLF DR ,  VAGT UWE DR

IPC: C07D315/00

Abstract: 5-Methylbutyrolactone is prepared from pentenoic acid esters by reacting these either directly with water and acidic catalysts or first hydrolysing the ester using acidic ion exchangers as catalysts and cyclising the pentenoic acids in a second step.

公开(公告)号：DE3640598A1

公开(公告)日：1988-06-01

申请号：DE3640598

申请日：1986-11-27

Applicant: BASF AG

Inventor： FISCHER ROLF DR

IPC: B01J31/02 ,  B01J31/00 ,  C07B61/00 ,  C07C67/30 ,  C07C67/333 ,  C07C69/52 ,  C07C69/533

Abstract: 2-cis-Pentenoates are isomerized to 2-trans-pentenoates by a process in which a 2-cis-pentenoate is treated at from 20 DEG to 250 DEG C. in the presence of one or more compounds of the formula I I where R1 is hydrogen or R1 and R2 are each cycloalkyl of 5 to 8 carbon atoms or alkyl of 1 to 6 carbon atoms, or R1 and R2 together with the nitrogen atom on which they are substituents may form a 5-membered to 7-membered ring which may additionally contain a further nitrogen or oxygen atom, and R3 is hydrogen or a radical of the formula II II where R4 is alkyl of 1 to 6 carbon atoms, cycloalkyl of 5 to 7 carbon atoms, aralkyl of 7 to 10 carbon atoms or aryl of 6 to 10 carbon atoms, with the proviso that a tertiary amine is present only when R3 is a radical of the formula II.

公开(公告)号：DE3630613A1

公开(公告)日：1988-03-17

申请号：DE3630613

申请日：1986-09-09

Applicant: BASF AG

Inventor： KUMMER RUDOLF DR ,  FISCHER ROLF DR ,  VAGT UWE DR

IPC: C07D207/38 ,  C07D211/86

Abstract: Process for the preparation of 3,4-dihydro-2-pyridones of the formula and/or 3-pyrroline-2-ones of the formula in which R1 to R5 denote hydrogen, or alkyl, cycloalkyl, aralkyl or aryl radicals, in which 3-alkenylamides of the formula in which R1 to R5 have the abovementioned meaning, are reacted with carbon monoxide and hydrogen at temperatures of 80-150 DEG C and pressures of 1 to 300 bar in the presence of cobalt carbonyl and/or rhodium carbonyl complexes.

公开(公告)号：DE3619173A1

公开(公告)日：1987-12-10

申请号：DE3619173

申请日：1986-06-06

Applicant: BASF AG

Inventor： RIEBER NORBERT DR ,  FISCHER ROLF DR ,  BRUNNER ERWIN DR ,  LUYKEN HERMANN ,  VAGT UWE DR

IPC: C07C7/06 ,  C07C1/00 ,  C07C7/04 ,  C07C13/18 ,  C07C13/20 ,  C07C67/00 ,  C07C15/04

公开(公告)号：DE3465991D1

公开(公告)日：1987-10-15

申请号：DE3465991

申请日：1984-06-28

Applicant: BASF AG

Inventor： WEITZ HANS-MARTIN DR ,  FISCHER ROLF DR

IPC: C07D303/08 ,  B01J31/00 ,  C07B61/00 ,  C07D301/19 ,  C07D303/04

公开(公告)号：DE3636430A1

公开(公告)日：1987-08-13

申请号：DE3636430

申请日：1986-10-25

Applicant: BASF AG

Inventor： HOELDERICH WOLFGANG DR ,  FISCHER ROLF DR ,  MESCH WALTER DR

IPC: C07D309/18 ,  B01J29/04 ,  B01J29/06 ,  B01J29/18

Abstract: The application relates to a process for the preparation of 2,3-dihydropyrans by reaction of optionally substituted 1,2,5-pentanetriols on zeolitic catalysts. Zeolites of the pentasil type are preferably used as catalysts.

公开(公告)号：DE3461640D1

公开(公告)日：1987-01-22

申请号：DE3461640

申请日：1984-06-16

Applicant: BASF AG

Inventor： FISCHER ROLF DR ,  WEITZ HANS-MARTIN DR ,  RIEBER NORBERT DR ,  BOEHM HEINRICH DR

IPC: B01J21/00 ,  B01J21/06 ,  C07B61/00 ,  C07C409/20 ,  C07D301/19 ,  C07D303/04

公开(公告)号：DE3461078D1

公开(公告)日：1986-12-04

申请号：DE3461078

申请日：1984-03-07

Applicant: BASF AG

Inventor： SCHNABEL ROLF DR ,  KISSAU GERD DR ,  WEITZ HANS-MARTIN DR ,  FISCHER ROLF DR

IPC: C07C67/05 ,  B01J23/00 ,  B01J23/40 ,  C07B61/00 ,  C07C67/055 ,  C07C67/54 ,  C07C69/003 ,  C07C69/16

Abstract: 1,4-diacyloxybutenes are prepared by reacting a 1,3-butadiene with a carboxylic acid and oxygen in the presence of a catalyst in a reactor, by a process in which the 3,4-diacyloxybutene formed as a by-product in the reaction is separated off from the reaction mixture, and some or all of this 3,4-diacyloxybutene is recycled to the reactor.

公开(公告)号：DE3503587A1

公开(公告)日：1986-08-07

申请号：DE3503587

申请日：1985-02-02

Applicant: BASF AG

Inventor： BROECKER FRANZ JOSEF DR ,  FISCHER ROLF DR ,  MALSCH KLAUS-DIETER DR ,  REISS WOLFGANG DR ,  SCHNABEL ROLF DR ,  WEITZ HANS-MARTIN DR

IPC: C07C29/136 ,  B01J23/72 ,  C07B61/00 ,  C07C27/00 ,  C07C29/149 ,  C07C31/20 ,  C07C67/00

Abstract: A catalyst containing copper and silica is prepared by a process in which an aqueous alkali metal silicate solution containing from 1 to 26% by weight of SiO2 is brought to a pH of from 0.5 to 2.0 with nitric acid, an aqueous copper nitrate solution containing from 5 to 15% by weight of Cu is added, after the addition of the nitric acid, so that a clear solution containing from 0.18 to 3.0 moles of Cu per mole of SiO2 is formed, the resulting solution is mixed with an aqueous alkali metal carbonate solution at from 40 DEG to 80 DEG C., the pH of the mixture being kept at from 7.5 to 8.5, and the precipitated material is separated off, dried, calcined by heating at from 250 DEG to 400 DEG C. and pressed in a conventional manner to give catalyst moldings. The catalyst thus obtained is used for the hydrogenation of dialkyl dicarboxylates to diols.