-
公开(公告)号:BR7604981A
公开(公告)日:1977-08-09
申请号:BR7604981
申请日:1976-07-30
Applicant: HOECHST AG
IPC: C07C45/00 , C07C45/45 , C07C49/403 , C07C49/657 , C07C49/713 , C07C67/00 , C07C49/36
Abstract: Cyclohexanediones-1,3 are prepared in a good selectivity by reacting an alpha , beta -unsaturate carboxylic acid ester with a ketone in the liquid phase in the presence of a strong base and a solvent selected from the group consisting of carboxylic acid amides, phosphoric acid amides, sulfoxides, sulfones, and glycol dialkyl ethers.
-
公开(公告)号:ZA7604582B
公开(公告)日:1977-07-27
申请号:ZA7604582
申请日:1976-07-30
Applicant: HOECHST AG
IPC: C07C45/00 , C07C45/45 , C07C49/403 , C07C49/657 , C07C49/713 , C07C67/00 , C07C
CPC classification number: C07C45/455 , C07C49/403
-
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:ZA764388B
公开(公告)日:1977-07-27
申请号:ZA764388
申请日:1976-07-22
Applicant: HOECHST AG
IPC: C07C27/00 , C07C69/88 , C07C37/00 , C07C37/06 , C07C37/07 , C07C39/08 , C07C41/00 , C07C43/23 , C07C45/45 , C07C45/60 , C07C67/00 , C07C253/00 , C07C255/53 , C07C
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:ZA764582B
公开(公告)日:1977-07-27
申请号:ZA764582
申请日:1976-07-30
Applicant: HOECHST AG
IPC: C07C45/00 , C07C45/45 , C07C49/403 , C07C49/657 , C07C49/713 , C07C67/00 , C07C
Abstract: Cyclohexanediones-1,3 are prepared in a good selectivity by reacting an alpha , beta -unsaturate carboxylic acid ester with a ketone in the liquid phase in the presence of a strong base and a solvent selected from the group consisting of carboxylic acid amides, phosphoric acid amides, sulfoxides, sulfones, and glycol dialkyl ethers.
-
公开(公告)号:ZA765386B
公开(公告)日:1977-08-31
申请号:ZA765386
申请日:1976-09-09
Applicant: HOECHST AG
IPC: C07C69/716 , C07C51/00 , C07C59/185 , C07C67/00 , C07C
-
公开(公告)号:ZA7605386B
公开(公告)日:1977-08-31
申请号:ZA7605386
申请日:1976-09-09
Applicant: HOECHST AG
IPC: C07C69/716 , C07C51/00 , C07C59/185 , C07C67/00 , C07C
CPC classification number: C07C255/00 , C07C59/185 , Y02P20/582
-
-
-
-
-
-
-
-