公开(公告)号：NO141992B

公开(公告)日：1980-03-03

申请号：NO743305

申请日：1974-09-13

Applicant: BASF AG

Inventor： BOLZ GERHARD ,  WIERSDORFF WALTER-WIELANT

IPC: C07D307/77 ,  C07D20060101 ,  C07D307/83 ,  C07D307/89 ,  C07D307/93

Abstract: New 4-oxa-5-hydroxypolycycloalkenones-(3) and a new method for their Production by Diels-Alder reaction of cycloalkapolyenes with 2-hydroxy-2,5-dihydrofuran-5-ones. The new and known compounds obtainable by the process of the invention are starting materials for the production of dyes, plastics, pharmaceutical products and pest control agents.

公开(公告)号：CA1049023A

公开(公告)日：1979-02-20

申请号：CA208733

申请日：1974-09-09

Applicant: BASF AG

Inventor： AMANN AUGUST ,  BOLZ GERHARD ,  WIERSDORFF WALTER-WIELANT ,  GIERTZ HUBERT ,  WILSMANN KLAUS

IPC: C07D307/77 ,  A61K20060101 ,  A61K31/27 ,  A61K31/34 ,  A61K31/365 ,  C07D20060101 ,  C07D307/89 ,  C07D307/93

Abstract: Carbamates derived from polycyclic ?-hydroxylactones and their production. The compounds may be used as pharmaceuticals by virtue of their analgesic properties.

公开(公告)号：DE59900932D1

公开(公告)日：2002-04-11

申请号：DE59900932

申请日：1999-03-24

Applicant: BASF AG

Inventor： NESTLER GERHARD ,  SCHROEDER JUERGEN ,  BOLZ GERHARD

IPC: C07C51/21 ,  C07C51/25 ,  C07C51/44 ,  C07C57/05 ,  C07C57/07 ,  C07C67/08 ,  C07C69/54

Abstract: A process for preparing acrylic acid and/or acrylates, which comprises stage A with or without stages B and C:A: cooling a gaseous reaction mixture which comprises acrylic acid and is obtained in the gas-phase oxidation to prepare acrylic acid, using an inert high-boiling solvent, to give a gaseous mixture comprising acrylic acid;B: separating the gaseous mixture comprising acrylic acid to give a low-boiling fraction, a crude acrylic acid, and a bottom product, andC: esterifying the crude acrylic acid obtained in stage B by means of one or more alkanols to give an esterification mixture comprising one or more acrylates and one or more acetic esters.

公开(公告)号：DE19814375A1

公开(公告)日：1999-10-07

申请号：DE19814375

申请日：1998-03-31

Applicant: BASF AG

Inventor： NESTLER GERHARD ,  SCHROEDER JUERGEN ,  BOLZ GERHARD

IPC: C07C51/21 ,  C07C51/25 ,  C07C51/44 ,  C07C57/05 ,  C07C57/07 ,  C07C67/08 ,  C07C69/54 ,  C07C67/48 ,  C07C27/02

Abstract: The invention relates to a method for producing acrylic acid or acrylic acid esters, comprising step A and optionally, steps B and C as follows: A: cooling a gaseous reaction mixture formed during a gas phase oxidation process for producing acrylic acid and containing acrylic acid using an inert, high-boiling solvent, to produce a gaseous mixture containing acrylic acid; B: separating the gaseous mixture containing acrylic acid to produce a light-boiling fraction, a crude acrylic acid and a bottom product, and C: esterifying the crude acrylic acid obtained in step B using one or more alkanols to obtain an esterification mixture containing one or more acrylic acid esters and one or more acetic acid esters.

公开(公告)号：NO141992C

公开(公告)日：1980-06-11

申请号：NO743305

申请日：1974-09-13

Applicant: BASF AG

Inventor： BOLZ GERHARD ,  WIERSDORFF WALTER-WIELANT

IPC: C07D307/77 ,  C07D20060101 ,  C07D307/83 ,  C07D307/89 ,  C07D307/93

Abstract: New 4-oxa-5-hydroxypolycycloalkenones-(3) and a new method for their Production by Diels-Alder reaction of cycloalkapolyenes with 2-hydroxy-2,5-dihydrofuran-5-ones. The new and known compounds obtainable by the process of the invention are starting materials for the production of dyes, plastics, pharmaceutical products and pest control agents.

公开(公告)号：NO141897B

公开(公告)日：1980-02-18

申请号：NO743304

申请日：1974-09-13

Applicant: BASF AG

Inventor： AMANN AUGUST ,  BOLZ GERHARD ,  WIERSDORFF WALTER-WIELANT ,  GIERTZ HUBERT ,  WILSMANN KLAUS

IPC: C07D307/77 ,  A61K20060101 ,  A61K31/27 ,  A61K31/34 ,  A61K31/365 ,  C07D20060101 ,  C07D307/89 ,  C07D307/93

公开(公告)号：CA1071644A

公开(公告)日：1980-02-12

申请号：CA286651

申请日：1977-09-13

Applicant: BASF AG

Inventor： AMANN AUGUST ,  BOLZ GERHARD ,  WIERSDORFF WALTER-WIELANT ,  GIERTZ HUBERT ,  WILSMANN KLAUS

IPC: C07D307/77

Abstract: This invention is concerned with a process for the production of a new carbamate of the formula I: I, in which the dotted line denotes a double bond which may be hydrogenated, X is an alkylene bridge of 1 or 2 carbon atoms, R1 is hydrogen or alkyl of 1 to 4 carbon atoms, R2 is hydrogen, R3 is hydrogen and R4 is hydrogen, a linear of branched alkyl of 1 to 4 carbon atoms or a phenyl. This process comprises the steps of reacting a diene of the formula V: V, with a dienophile of the formula VI: VI, according to the Diels Alder reaction, at a temperature of from 15.degree. to 220.degree.C, and hydrogenating the double bond of the obtained unsaturated carbamate when desired. The so prepared new carbamate may be used as pharmaceuticals by virtue of their analgesic properties.