📜Cyclopentylmagnesium Chloride置于三氯化磷,硫酸体系中,用 四氢呋喃,水,甲苯 作为反应溶剂,化学反应 5.0H,反应生成 三环戊基膦 参考文献:Phosphonium Borate Compound And Method Of Using The Same 标题:Phosphonium Borate Compound And Method Of Using The Same
专利信息
专利号:US-6613910-B2 优先权日:2001-04-02 标题 :One-pot synthesis of group 8 transition metal carbene complexes useful as olefin metathesis catalysts 发明人:GRUBBS ROBERT H; MORGAN JOHN P; BENITEZ DIEGO; LOUIE JANIS 权利人:CALIFORNIA INST OF TECHN 摘要:The invention provides a novel method for synthesizing transition metal carbene complexes useful as olefin metathesis catalysts. The method is a convenient one-pot synthesis in which transition metal carbenes are prepared in high yield from readily available starting materials via a dihydrogen complex containing two different anionic ligands, preferably a phosphine and a heteroatom-stabilized carbene. The invention additionally provides a method for synthesizing precursors to carbene ligands useful, inter alia, in the aforementioned one-pot synthesis. The precursors are in the form of trichloromethyl adducts of the formula L 1 -CCl 3 , where L 1 is a heteroatom-stabilized carbene ligand, and are prepared by contacting an unsaturated, ionized analog of L-CCl 3 with a non-nucleophilic base in the presence of chloroform.
专利号:US-2022298136-A1 优先权日:2019-08-21 标题 :Process for synthesis of pyrazolidinone compounds 发明人:MATHUR SUCHET SARAN; JAIN NANDKUMAR JANARDAN; MORE MAHENDRA MAHIPAT 权利人:GHARDA CHEMICALS LTD 摘要:A process for the synthesis of pyrazolidinone, particularly alkyl 2-(3-chloropyridin-2-yl)-5-oxo-pyrazolidine-3-carboxylate (pyrazolidinone) compound, is provided. The process is simple, economical, and produces alkyl 2-(3-chloropyridin-2-yl)-5-oxo-pyrazolidine-3-carboxylate with a comparatively high yields.
专利号:WO-2021033165-A1 优先权日:2019-08-21 标 题:Process for synthesis of pyrazolidinone compounds 发明人:MATHUR SUCHET SARAN; MHATRE HRIDAYNATH VISHWANATH; PEDHAVI VISHAL PARSHURAM 权利人:GHARDA CHEMICALS LTD 摘要:The present disclosure relates to a process for the synthesis of pyrazolidinone, particularly alkyl 2-(3-chloropyridin-2-yl)-5-oxo-pyrazolidine-3-carboxylate (pyrazolidinone) compound. The process of the present disclosure is simple, economical, and produces alkyl 2-(3-5 chloropyridin-2-yl)-5-oxo-pyrazolidine-3-carboxylate with a comparatively high yields.
专利号:US-7034096-B2 优先权日:2002-02-19 标题:Ring-expansion of cyclic olefins metathesis reactions with an acyclic diene 发明人:CHOI TAE-LIM; LEE CHOON WOO; KIM HYUNJIN M; GRUBBS ROBERT H 权利人:CALIFORNIA INST OF TECHN 摘要:This invention relates generally to synthetic procedures that include the step of ring-opening metathesis of cyclic olefins and reaction with an acyclic diene co-reactant to produce olefin macrocycles by ring expansion, or alternatively. The ring expansion of the cyclic olefin is provided by three types of sequential olefin metathesis (ring-opening, cross, and ring-closing olefin metathesis). More particularly, the invention pertains to synthesis of olefin macrocycles via olefin metathesis reactions using a Group 8 transition metal complex as the metathesis catalyst. Macrocycles provided herein have a variety of uses in the pharmaceutical, biomedical, organic synthesis and chemical industries, such as the production of crown ethers that are useful as metal complexing species.
专利号:US-6946533-B2 优先权日:2002-08-01 标 题 :Synthesis of macrocyclic polymers by ring insertion polymerization of cyclic olefin monomers 发明人:GRUBBS ROBERT; BIELAWSKI CHRIS; BENITEZ DIEGO 权利人:CALIFORNIA INST OF TECHN 摘要:A method for synthesizing cyclic polymers using transition metal alkylidene complexes as reaction catalysts is provided, wherein the complexes contain a cyclic group. Polymerization is carried out on the catalyst, using cyclic olefin monomers that undergo ring insertion polymerization, and no linear intermediates are generated. Following completion of polymerization, the cyclic polymer detaches from the complex via an intramolecular chain transfer reaction and the catalytic complex is regenerated. The invention also provides novel transition metal alkylidene complexes useful as catalysts in the aforementioned process, as well as novel cyclic hydrocarbons.
专利号:US-11794179-B2 优先权日:2016-08-24 标 题 :Synthesis and characterization of metathesis catalysts 发明人:JOHNS ADAM M 权利人:UMICORE AG & CO KG 摘要:This invention relates generally to olefin metathesis catalysts, to the preparation of such compounds, compositions comprising such compounds, methods of using such compounds, and the use of such compounds in the metathesis of olefins and in the synthesis of related olefin metathesis catalysts. The invention has utility in the fields of catalysis, organic synthesis, polymer chemistry, and in industrial applications such as oil and gas, fine chemicals and pharmaceuticals.
摘要:Alonso, D. A.; Nájera, C., Science of Synthesis, (2010) 47, 455. 摘要:Stolley, R. M.; Louie, J., Science of Synthesis Knowledge Updates, (2013) 2, 26. 摘要:Kantchev, E. A. B.; Organ, M. G., Science of Synthesis, (2009) 48, 51. 摘要:Stolley, R. M.; Louie, J., Science of Synthesis Knowledge Updates, (2013) 2, 39. 摘要:Ferris, G. E.; Mlynarski, S. N.; Morken, J. P., Science of Synthesis Knowledge Updates, (2012) 3, 242.