| Patents for C07J 75 - Processes for the preparation of steroids, in general (1,657) |
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| 03/10/1981 | US4255331 Reacting isopropenyl acetate and a 9,11-epoxy-pregn-4-ene-3,20-dione using an acid catalyst |
| 01/28/1981 | EP0023006A1 Process for the preparation of unsaturated steroids |
| 09/16/1980 | CA1085821A1 Process for producing 17-ketals of 3-alkoxyestra-2, 5(10)-dien-17-ones |
| 09/16/1980 | CA1085820A1 Method for the preparation of esters |
| 04/15/1980 | US4198276 Distillation, removal of friedel-crafts catalysts |
| 01/01/1980 | US4181669 Steroid esters preparation |
| 12/25/1979 | US4180504 Method for the preparation of esters |
| 10/31/1979 | EP0005100A1 Epoxidation reagent and its use for the epoxidation of acyclic, cyclic or polycyclic organic compounds containing at least one ethylenic unsaturation |
| 10/30/1979 | CA1065302A1 13-ethinyl-steroids and processes for their manufacture |
| 10/16/1979 | CA1064475A1 Electrophilic fluorination of organic compounds |
| 07/10/1979 | CA1058159A1 Difluorosteroids and processes for their manufacture |
| 05/22/1979 | CA1055014A1 STEROIDAL(16.alpha., 17-B) NAPHTHALENES |
| 05/22/1979 | CA1055013A1 Process for producing steroidal compounds |
| 05/22/1979 | CA1055011A1 PROCESS FOR THE PREPARATION OF 1.alpha., 3.beta. - DIHYDROXY STEROID-5-ENES |
| 03/06/1979 | US4143040 From the 1,3,5(10)-triene derivatives with sodium or potassium, liquid ammonia and a tertiary alcohol in solvent by birch reduction |
| 01/16/1979 | CA1046501A1 19,8-lactone steroid derivatives and processes of preparation thereof |
| 08/22/1978 | CA1037025A1 Preparation of 5 d - hydroxy 13 b - alkyl gona -9,11 - diene steroid derivatives |
| 08/08/1978 | US4105676 Steroid total synthesis process utilizing a cyanoalkyl a-ring precursor |
| 07/25/1978 | US4102883 19,8-Lactone steroid derivatives and processes of preparation thereof |
| 06/13/1978 | CA1032927A1 Process for the preparation of new estrone-derived haptens |
| 05/30/1978 | US4092310 Hormones |
| 03/07/1978 | US4078139 Process for deoxygenating secondary alcohols |
| 01/31/1978 | US4071537 Steroid total synthesis process utilizing a cyanoalkyl A-ring precursor |
| 12/20/1977 | US4064185 Olefinically unsaturated substituents at C-11 of steroid cyclization precursors |
| 11/08/1977 | US4057541 Forming adduct with calcium bromide, methyl isobutyl or amyl ketone solvent |
| 10/04/1977 | US4052421 Fertility control |
| 08/30/1977 | US4045555 Method for the photostabilization of polyhydroxylated sterols and stabilized biological insecticidal product obtained thereby |
| 08/30/1977 | US4045452 Steroid total synthesis process utilizing a cyanoalkyl A-ring precursor |
| 07/19/1977 | US4036864 Electrophilic fluorination of steroids |
| 06/21/1977 | US4031074 Contraceptives |
| 03/29/1977 | USRE29163 1,2,3,4,10,19-Hexanor-9-oxo-5,9-seco-25D-spirostan-5-oic acid |
| 01/25/1977 | US4005078 Maximizing progestational and minimizing androgenic activity |
| 01/11/1977 | US4002746 Synthesis of gon-4-enes |
| 11/30/1976 | US3994938 Process for producing steroidal compounds |
| 11/30/1976 | US3994926 Aryl ketals of polycyclic oxo compounds and processes |
| 11/16/1976 | US3992317 Particulate peroxygen compounds |
| 11/09/1976 | US3991084 Steroid total synthesis process utilizing a cyanoalkyl A-ring precursor |
| 10/05/1976 | US3984427 Preparation of vinyl lactones and corresponding Mannich bases |
| 09/14/1976 | US3980687 Intermediates for the preparation of 17-substituted-Δ4 -gonenes |
| 08/24/1976 | US3977008 Method and an apparatus for detecting and recording the number of phenomena |
| 08/17/1976 | US3975373 Cardioglycoside derivatives of the strophanthidin type, a process for their manufacture and medicinal preparations containing these compounds |
| 08/10/1976 | US3974182 Intermediates for the preparation of trienic steroids |
| 08/03/1976 | US3972896 Aryl ketals of polycyclic oxo compounds and processes |
| 06/29/1976 | US3966778 Production of 21-phosphate corticords having unprotected hydroxyl radicals at least at the 17α- and 21-position |
| 06/01/1976 | US3960896 Hydrogenation catalyst |
| 06/01/1976 | US3960895 Aryl ketals of polycyclic oxo compounds and processes |
| 05/25/1976 | US3959322 Synthesis of 13-alkyl-gon-4-ones |
| 04/27/1976 | US3953429 Anaesthetic steroids of the androstance and pregnane series |
| 04/20/1976 | US3951958 1,3-Oxygenated-8α-estratrienes |
| 04/20/1976 | US3951946 Cardioglycoside derivatives of the strophanthidin type, a process for their manufacture and medicinal preparations containing these compounds |
| 04/13/1976 | US3950358 Steroid intermediates |
| 04/06/1976 | US3948951 Aryl ketals of 1-chloro-4-oxo-pentane |
| 03/30/1976 | US3947409 16-Alkyl-1,4,9(11)-pregnatrienes and 9,11-epoxides thereof |
| 03/09/1976 | US3943124 Chemical compounds |
| 02/17/1976 | US3939186 Process for producing ethers of steroids |
| 02/10/1976 | US3937720 Antiinflammatory agents |
| 01/20/1976 | USRE28690 17α-Ethinyl-18-methyl-19-nortestosterone esters |