-
公开(公告)号：BR7606039A
公开(公告)日：1977-08-23
申请号：BR7606039
申请日：1976-09-13
Applicant: HOECHST AG
IPC: C07C69/716 , C07C51/00 , C07C59/185 , C07C67/00 , C07C59/33 , C07C69/67 , C07C121/34
-
公开(公告)号：BR7604960A
公开(公告)日：1977-08-09
申请号：BR7604960
申请日：1976-07-29
Applicant: HOECHST AG
IPC: C07C69/88 , C07C27/00 , C07C37/00 , C07C37/06 , C07C37/07 , C07C39/08 , C07C41/00 , C07C43/23 , C07C45/45 , C07C45/60 , C07C67/00 , C07C253/00 , C07C255/53 , C07C39/12 , C07C43/22 , C07C69/84 , C07C121/75
Abstract: Resorcinols are prepared by reacting 4-oxocarboxylic acid esters or delta -enollactones with a strong base in a glycol dialkyl ether as solvent and by subsequent dehydrogenating the acidified reaction product.
-
公开(公告)号：ZA7604388B
公开(公告)日：1977-07-27
申请号：ZA7604388
申请日：1976-07-22
Applicant: HOECHST AG
IPC: C07C69/88 , C07C27/00 , C07C37/00 , C07C37/06 , C07C37/07 , C07C39/08 , C07C41/00 , C07C43/23 , C07C45/45 , C07C45/60 , C07C67/00 , C07C253/00 , C07C255/53 , C07C
CPC classification number: C07C45/455 , C07C37/07 , C07C39/08 , C07C45/60 , C07C49/403
-
-
公开(公告)号：BR7506872A
公开(公告)日：1976-08-17
申请号：BR7506872
申请日：1975-10-21
Applicant: HOECHST AG
Inventor： MUELLER W , FERNHOLZ H
Abstract: Process for preparing resorcinols from delta -ketocarboxylic acids or their lactones in the gaseous phase at temperatures from 150 DEG 14 500 DEG C by means of a dehydrogenation catalyst.
-
Patent Agency Ranking
公开(公告)号：ZA7405966B
公开(公告)日：1975-11-26
申请号：ZA7405966
申请日：1974-09-20
Applicant: HOECHST AG
Inventor： MUELLER W
IPC: C07C51/373 , B01J31/00 , C07B61/00 , C07C51/00 , C07C59/185 , C07C59/76 , C07C62/24 , C07C67/00 , C07C
CPC classification number: C07C59/185 , C07C51/373
-
公开(公告)号：BR7500406A
公开(公告)日：1975-11-04
申请号：BR7500406
申请日：1975-01-21
Applicant: HOECHST AG
Inventor： MUELLER W
IPC: C07C213/00 , C07C20060101 , C07C37/06 , C07C67/00 , C07C215/76 , C07C217/92 , C07C225/20 , C07D20060101 , C07D265/06 , C07D265/30 , C07D295/08 , C07D295/10 , C07C91/44
Abstract: 3-Aminophenols are prepared by dehydrogenation at elevated temperature of 3-aminocyclohexenones. The compounds obtained are valuable intermediates for drugs, dyestuffs and herbicides.
-
公开(公告)号：ZA743473B
公开(公告)日：1975-05-28
申请号：ZA743473
申请日：1974-05-30
Applicant: HOECHST AG
Inventor： MUELLER W
IPC: C07C255/17 , C07C20060101 , C07C67/00 , C07C253/00 , C07C
Abstract: Process for preparing 5-oxohexane-nitrile by reaction of acetone with acrylonitrile at elevated temperatures in the presence of an acid and a compound selected from the group consisting of primary amines, aliphatic amino alcohols, aliphatic amino carboxylic acids with primary amino groups or Schiff bases and in the presence of a minor quantity of water.
-
公开(公告)号：ZA7906942B
公开(公告)日：1980-12-31
申请号：ZA7906942
申请日：1979-12-20
Applicant: HOECHST AG
IPC: C07C69/716 , B01J31/00 , C07B61/00 , C07C51/00 , C07C51/373 , C07C59/185 , C07C67/00 , C07C253/00 , C07C255/17 , C07C
CPC classification number: C07C255/00 , C07C51/373 , C07C59/185
-
公开(公告)号：BR7903602A
公开(公告)日：1980-01-22
申请号：BR7903602
申请日：1979-06-07
Applicant: HOECHST AG
IPC: C07C43/23 , B01J23/00 , B01J23/56 , B01J23/96 , C07C27/00 , C07C37/00 , C07C37/06 , C07C37/07 , C07C39/08 , C07C39/12 , C07C41/00 , C07C67/00 , B01J23/90
Abstract: Resorcinols are prepared by converting delta -ketocarboxylic acid esters in the gaseous phase at a temperature from 250 DEG to 500 DEG C. in the presence of hydrogen at a catalyst. The catalyst consists of two components which are prepared separately and combined thereafter. The first component contains at least one compound of a metal of group VIII and/or at least one compound of a metal of group I B supported on one or several carrier materials. The second component contains at least one compound of a metal of group II A and/or IV A and/or III B and/or IV B supported on one or several carrier materials. A particularly preferred catalyst consists of a mixture of equal volume parts of platinum/charcoal as first component and of thorium/charcoal as second component.
-
-
-
-
-
-
-
-
-
Search Results
40
records
(took 0.022 seconds)
