专利号:US-12180132-B2 优先权日:2019-07-03 标题:Compositions and methods for synthesis of 2,3-dichloro-1,1,1,2-tetrafluoropropane and 2,3,3,3-tetrafluoropropene 发明人:SUN XUEHUI 权利人:CHEMOURS CO FC LLC 摘要:A method of synthesizing 2,3,3,3-tetrafluoropropene (1234yf) from 2-chloro-3,3,3-trifluoropropene (1233xf). The 2-chloro-3,3,3-trifluoropropene (1233xf) is reacted in the vapor phase, in the presence of a catalyst, at a temperature and pressure sufficient to selectively convert the 2-chloro-3,3,3-trifluoropropene (1233xf) to 2,3,3,3-tetrafluoropropene (1234yf) without the use of antimony-based catalysts.
专利号:US-8791309-B2 优先权日:2012-12-21 标题 :Synthesis of 3,3,3-trifluoropropyne 发明人:ZHAI YIAN; POSS ANDREW J; SINGH RAJIV R; NALEWAJEK DAVID 权利人:HONEYWELL INT INC 摘要:In accordance with the present invention, processes of synthesizing 3,3,3-trifluoropropyne from 1,3,3,3-tetrafluoropropene, 1-chloro-3,3,3-trifluoropropene, and/or 1,1,1,3,3-pentafluoropropane are provided.
专利号:US-9422244-B2 优先权日:2010-01-29 标 题 :Synthesis of substituted pyrazoline carboxamidine derivatives 发明人:VAN LOEVEZIJN ARNOLD; LANGE JOSEPHUS H M; BARF GERRIT A; DEN HARTOG ARNOLD P 权利人:VAN LOEVEZIJN ARNOLD; LANGE JOSEPHUS H M; BARF GERRIT A; DEN HARTOG ARNOLD P; ABBVIE BAHAMAS LTD 摘要:This invention relates to organic chemistry, in particular to processes for the preparation of pyrazoline carboxamidine derivatives of formula (I), known as potent 5-HT6 antagonists. The invention also relates to novel intermediates of these compounds. wherein the symbols have the meanings given in the description.
专利号:WO-2011092226-A1 优先权日:2010-01-29 标 题:Synthesis of substituted pyrazoline carboxamidine derivatives
专利号:US-2013060041-A1 优先权日:2010-01-29 标题:Synthesis of substituted pyrazoline carboxamidine derivatives
专利号:WO-2021003207-A2 优先权日:2019-07-03 标 题:Compositions and methods for synthesis of 2,3-dichloro-1,1,1,2-tetrafluoropropane and 2,3,3,3-tetrafluoropropene
摘要:Silva, V. L. M.; Pinto, D. C. G. A.; Santos, C. M. M.; Rocha, D. H. A., Science of Synthesis Knowledge Updates, (2022) 3, 397. 摘要:Fuchibe, K.; Ichikawa, J., Science of Synthesis Knowledge Updates, (2014) 2, 217. 摘要:Collings, J. C., Science of Synthesis Knowledge Updates, (2013) 4, 231. 摘要:Hay, M. B.; Hicks, J. D., Science of Synthesis: Cross Coupling and Heck-Type Reactions, (2012) 2, 130. 摘要:S95 | PFASANEXCH | PFAS List from the NORMAN PFAS Analytical Exchange Activity | DOI:10.5281/zenodo.6384309