CAS: 170082-17-4; 3'-Hydroxystanozolol-D3

专利信息

专利号:US-6504041-B2
优先权日:1996-11-15
标题 :Synthesis of ruthenium or osmium metathesis catalysts
发明人：GRUBBS ROBERT H; BELDERRAIN TOMAS R; BROWN SETH N; WILHELM THOMAS E
权利人:CALIFORNIA INST OF TECHN
摘要:The present invention relates to the synthesis of highly active ruthenium and osmium carbene metathesis catalyst in good yield from readily available starting materials. The catalysts that may be synthesized are of the general formula n wherein: n M is ruthenium or osmium; n X and X 1 are independently any anionic ligand; n L and L 1 are any neutral electron donor ligand; and, n R and R 1 are each hydrogen or one of the following substituent groups: C 2 -C 20 alkenyl, C 2 -C 20 alkynyl, C 1 -C 20 alkyl, aryl, C 1 -C 20 carboxylate, C 1 -C 20 alkoxy, C 2 -C 20 alkenyloxy, C 2 -C 20 alkynyloxy, aryloxy, C 2 -C 20 alkoxycarbonyl, C 1 -C 20 alkylthio, C 1 -C 20 alkylsulfonyl and C 1 -C 20 alkylsulfinyl. Optionally, the substituent group may be substituted with one or more groups selected from C 1 -C 5 alkyl, halogen, C 1 -C 5 alkoxy, and aryl. When the substitute aryl group is phenyl, it may be further substituted with one or more groups selected from a halogen, a C 1 -C 5 alkyl, or a C 1 -C 5 alkoxy. Specific synthetic protocols for vinyl alkylidene catalysts wherein R is hydrogen and R 1 is —CHCR 12 R 13 and non-vinyl alkylidene catalysts are also disclosed. In addition to the ease of synthesis (typically a one-step synthesis), the reactions generally may be run at or above room temperature and the resulting products usually may be used without extensive post synthesis purification.

专利号:US-10010875-B2
优先权日:2014-10-30
标题 :Method for preparing copper-zinc-based catalyst used in synthesis of methanol through CO2 hydrogenation
发明人：YU YANG; HAO AIXIANG; CHEN HAIBO; WEI SHIXIN; YIN YUSHENG; XIE TIANMING; HE JIAN; MAO CHUNPENG; TAN JIEDONG
权利人:CHINA PETROLEUM & CHEM CORP; RES INSTITUTE OF NANJING CHEMICAL INDUSTRY GR; RES INST NANJING CHEMICAL IND GROUP
摘要:Disclosed is a method for preparing a copper-zinc-based catalyst used in synthesis of methanol through CO 2 hydrogenation, and ultrasonic waves are used for control over crystalline phase's composition of a catalyst precursor. Further related to is a catalyst prepared by such a method. An amount of aurichalcite in an active catalyst precursor can be improved through the method, and the specific surface area of the metal copper in a reduced state catalyst is high. The catalyst presents high activity and hydrothermal stability, and promotes high space time yield of methanol in the synthesis of methanol through CO 2 hydrogenation.

专利号:WO-2024189634-A1
优先权日:2023-03-13
标 题 :Highly atom economical process for synthesis of novel co-initiator for photo-induced radical polymerisation
发明人：KAPAT DR AJOY; AHMAD ASRAR; MITTAL GARVISHA
权利人:SHIV NADAR INSTITUTION OF EMINENCE DEEMED TO BE UNIV
摘要:The present invention relates to a base catalyzed sequential conjugate addition reaction for the synthesis of a novel and efficient co-initiator for Photo Induced Radical Polymerization. The process comprises synthesis of new co-initiator having 6,5 and 6,6-bicyclic scaffolds as central core. The process comprises reacting thiocarboxylic acid, catechol, thiocatechol, benzodithiol, benzothiocatechol and binol with ketone substrates at room temperature with a base and a solvent to yield the novel co-initiator compound of Formula 3, Formula 5, Formula C and Formula Z.

专利号:WO-2025062384-A2
优先权日:2023-09-23
标题 :A method for synthesis of metal halide perovskite (cspbbr3) nano/microcrystals
发明人：M A GOKUL; RAHMAN ATIKUR
权利人:INDIAN INSTITUTE OF SCIENCE EDUCATION AND RES PUNE IISER PUNE
摘要:The present invention relates to metal halide perovskite (CsPbBr3) nano/microcrystals. Specifically, the present invention relates to a method for the synthesis of metal halide perovskite (CsPbBr3) nano/microcrystals. The present invention uses an easy, scalable low temperature growth of metal halide nanoparticles like CsPbBr3. The method uses a clever play on the solubility and ion exchange mechanism to precipitate nano and microcrystals of metal halide perovskites. The synthesis resulted in stable perovskite crystals with high photo- luminescence, ultralow dark current and control over their morphology. The combination of ultralow dark current, high responsivity, exceptional detectivity, and broad-band photon detection capabilities makes these crystals an excellent choice for upcoming sensors and detector technologies.

专利号:US-10040898-B2
优先权日:2016-08-31
标 题:Method for one-step synthesis of functional polyesters by organic catalysis
发明人：GUO KAI; LIU YIHUAN; ZHU NING; HU XIN; FANG ZHENG; FENG WEIYANG; HUANG WEIJUN
权利人:NANJING UNIVERSITY OF TECHNOLOGY
摘要:It relates to the field of synthetic macromolecular chemistry, and discloses a method for one-step synthesis of thiol-functionalized polyester polyols by organic catalysis. This method uses lactone monomer as reaction raw material, thiol-alcohol as initiator, and diphenyl phosphate as organic catalyst to catalyze and synthesize the thiol-functionalized polyester polyols. The present invention provides a method which is simple, inexpensive, easily controllable and environmentally friendly to prepare thiol-functionalized polyester polyols with the easily available and controllable catalyst. The method can selectively catalyze the ring opening polymerization of lactone to prepare thiol-functionalized polyester polyols using the organic catalyst.

专利号:WO-2021014395-A1
优先权日:2019-07-24
标题:Process for the synthesis of deuterated capsaicin, capsaicinoids and synthetic capsaicin analogs
发明人：ORUGANTI SRINIVAS; AMRUTAPU SRAVANTH KUMAR; SAMPATH MAGESH; SEN SAIKAT
权利人:DR REDDY’S INST OF LIFE SCIENCES
摘要:The present application provides novel processes for the synthesis of deuterated intermediates of capsaicinoids, particularly II, III, IV and V of capsaicinoids, relating to pharmaceutical applications. The invention also provides novel intermediates of compounds of formula IX, XIV, XV, XVI, XVII, XVIII, XX and XXI utilized in the process of making deuterated capsaicin II, III, IV and V.