公开(公告)号：NO965022A

公开(公告)日：1997-05-28

申请号：NO965022

申请日：1996-11-26

Applicant: HOECHST AG

Inventor： GSCHEIDMEIER MANFRED ,  HAEBERLEIN HARALD

IPC: C07C5/31 ,  C07C5/29 ,  C07C13/40 ,  C07C13/47

CPC classification number: C07C5/29 ,  C07C2521/06 ,  C07C2602/42 ,  C07C13/40

公开(公告)号：CA893948A

公开(公告)日：1972-02-22

申请号：CA893948D

Applicant: HOECHST AG

Inventor： GSCHEIDMEIER MANFRED ,  FREYER WALTER

公开(公告)号：FI105808B

公开(公告)日：2000-10-13

申请号：FI924911

申请日：1992-10-29

Applicant: HOECHST AG

Inventor： RITTER EBERHARD ,  WISSER THOMAS ,  RIEDEL ALFRED ,  GSCHEIDMEIER MANFRED ,  MAGINOT JOACHIM

IPC: B01J21/06 ,  C07B61/00 ,  C07C5/29 ,  C07C13/40

公开(公告)号：CA1223891A

公开(公告)日：1987-07-07

申请号：CA459772

申请日：1984-07-26

Applicant: HOECHST AG

Inventor： SCHEIDL FRANZ ,  GSCHEIDMEIER MANFRED

IPC: A61K8/33 ,  A61Q13/00 ,  C07C41/00 ,  C07C41/06 ,  C07C43/18 ,  C07C67/00 ,  C11B9/00

Abstract: HOE 83/F 145 of the disclosure: The invention relates to new terpene ethers of the formula in which R denotes a cyclic or bicyclic radical or an alkyl radical which is substituted by cyclic, bicyclic or tricyclic radicals, optionally via an oxygen bridge. The compounds are prepared by reaction of camphene with alcohols R-OH, in which R represents one of the abovementioned radicals. The new ethers are used in the field of aroma substances and solvents, and as intermediates for plant protection agents, agents for combating pests and medicaments.

公开(公告)号：CA2191300A1

公开(公告)日：1997-05-28

申请号：CA2191300

申请日：1996-11-26

Applicant: HOECHST AG

Inventor： GSCHEIDMEIER MANFRED ,  HABERLEIN HARALD

IPC: C07C5/31 ,  C07C5/29 ,  C07C13/40 ,  C07C13/43

Abstract: A process for the preparation of camphene by the rearrangement of .alpha.-pinene in the presence of a titanium oxide hydrate catalyst under the action of heat, wherein .alpha.-pinene is refluxed until the content of .alpha.pinene in the reaction mixture is still at least 3% by weight, and the rearrangement is then brought to completion in a secondary reaction at a temperature below 160.degree.C. By carrying out the process in this way - refluxing to a relatively high residual content of .alpha.-pinene and performing a secondary reaction at a lower temperature - the formation of polymeric by-products is reduced. This process moreover increases the yield of camphene in that recycled tricyclene, concentrated in the distillation of the crude product, is partially rearranged to camphene or the formation of more tricyclene is reduced.

公开(公告)号：CA2081862A1

公开(公告)日：1993-05-02

申请号：CA2081862

申请日：1992-10-30

Applicant: HOECHST AG

Inventor： RITTER EBERHARD ,  WISSER THOMAS ,  RIEDEL ALFRED ,  GSCHEIDMEIER MANFRED ,  MAGINOT JOACHIM

IPC: B01J21/06 ,  C07B61/00 ,  C07C5/29 ,  C07C13/40

Abstract: Process for the preparation of camphene by the rearrangement of .alpha.-pinene In the preparation of camphene by the rearrangement of .alpha.- pinene, the reaction time can be shortened by carrying out the rearrangement under reflux. The heat of reaction produced is eliminated by evaporative cooling. The composition of the reaction mixture can be controlled by monitoring the temperature towards the end of the reaction.

公开(公告)号：FI924911A0

公开(公告)日：1992-10-29

申请号：FI924911

申请日：1992-10-29

Applicant: HOECHST AG

Inventor： RITTER EBERHARD ,  WISSER THOMAS ,  RIEDEL ALFRED ,  GSCHEIDMEIER MANFRED ,  MAGINOT JOACHIM

IPC: B01J21/06 ,  C07B61/00 ,  C07C5/29 ,  C07C13/40

公开(公告)号：CA1020170A

公开(公告)日：1977-11-01

申请号：CA198955

申请日：1974-04-30

Applicant: HOECHST AG

Inventor： GSCHEIDMEIER MANFRED

IPC: C07C53/16 ,  B01J23/00 ,  C07B61/00 ,  C07C51/00 ,  C07C51/487 ,  C07C67/00

公开(公告)号：CA826688A

公开(公告)日：1969-11-04

申请号：CA826688D

Applicant: HOECHST AG

Inventor： GSCHEIDMEIER MANFRED ,  FREYER WALTER ,  HOLTERMANN ROLF ,  WIRTZ RUDOLF

公开(公告)号：CA2191300C

公开(公告)日：2007-04-03

申请号：CA2191300

申请日：1996-11-26

Applicant: HOECHST AG

Inventor： GSCHEIDMEIER MANFRED ,  HABERLEIN HARALD

IPC: C07C5/31 ,  C07C13/43 ,  C07C5/29 ,  C07C13/40

Abstract: A process for the preparation of camphene by the rearrangement of .alpha.-pinene in the presence of a titanium oxide hydrate catalyst under th e action of heat, wherein .alpha.-pinene is refluxed until the content of .alpha.-pinene in the reaction mixture is still at least 3% by weight, and the rearrangement i s then brought to completion in a secondary reaction at a temperature below 160.degree.C. By carrying out the process in this way - refluxing to a relatively hig h residual content of .alpha.-pinene and performing a secondary reaction at a lower temperature - the formation of polymeric by-products is reduced. This process moreover increases the yield of camphene in that recycled tricyclene, concentrated in the distillation of the crude product, is partially rearranged to camphene or the formation of more tricyclene is reduced.