专利号:WO-0240493-A1 优先权日:2000-11-20 标题 :Asymmetric metal complexes based on a transition metal useful for enantioselective reduction of ketone derivatives by hydride transfer 发明人:LE GUYADER FREDERIC; MANFRE FRANCO; BIENEWALD FRANCK 权利人:RHODIA CHIMIE SA; LE GUYADER FREDERIC; MANFRE FRANCO; BIENEWALD FRANCK 摘要:The invention concerns asymmetric metal complexes based on a transition metal and comprising as ligand of said metal at least an optically active form of a compound of general formula (I). The invention also concerns the preparation and the use of said complexes in asymmetric organic synthesis and in particular for enantioselective reduction of ketone derivatives by hydride transfer.
专利号:EP-0020970-A1 优先权日:1979-06-16 标 题 :Alpha-chloroacetophenonoxime ethers and process for their preparation 发明人:BUSCHMANN ERNST DR; ZEEH BERND DR; BECKER RAINER DR; SCHAEFER PETER DR 权利人:BASF AG 摘要:R 1 Alkyl mit bis zu 4 Kohlenstoffatomen, Alkenyl mit bis zu 5 Kohlenstoffatomen, Alkinyl mit bis zu 4 Kohlenstoffatomen, Cycloalkyl mit bis zu 6 Kohlenstoffatomen, wobei der Alkyl-, Alkenyl-, Alkinyl- und der Cycloalkylrest jeweils durch 1 bis 3 Halogenatome substituiert sein können, gegebenenfalls durch Halogen, Alkyl oder Trifluormethyl einfach oder mehrfach im Arylrest substituiertes Aralkyl, gegebenenfalls durch Alkyl oder Halogen substituiertes Heteroarylalkyl sowie Cyanmethyl oder Alkoxycarbonylalkyl und R 2 , R 3 , R 4 unabhängig voneinander Wasserstoff, Halogen, Alkyl oder Alkoxy mit jeweils bis zu 4 Kohlenstoffatomen, Alkylthio mit bis zu 6 Kohlenstoffatomen, gegebenenfalls durch Halogen substituiertes Aryl oder Aralkyl, Aryloxy oder Arylthio bedeuten und zwei der Reste R 2 , R 3 , R 4 zusammen einen alicyclischen oder heterocyclischen Ring bilden können, an den ein weiterer aromatischer Ring ankondensiert sein kann, sowie ein Verfahren zu ihrer Herstellung durch Umsetzung von Phenacylchloriden mit Hydroxylaminen. Die a-Chloracetophenonoximether sind wertvolle Zwischenprodukte für die Synthese von fungiziden a-Azolylacetophenonoximethern. The present invention relates to a-chloroacetophenone oxime ether of the formula in the R 1 alkyl having up to 4 carbon atoms, alkenyl having up to 5 carbon atoms, alkynyl having up to 4 carbon atoms, cycloalkyl having up to 6 carbon atoms, the alkyl, alkenyl, alkynyl and cycloalkyl radicals each being substituted by 1 to 3 halogen atoms may be aralkyl, optionally substituted by halogen, alkyl or trifluoromethyl, mono- or polysubstituted in the aryl radical, optionally heteroarylalkyl optionally substituted by alkyl or halogen, and cyanomethyl or alkoxycarbonylalkyl and R 2 , R 3 , R 4 independently of one another denote hydrogen, halogen, alkyl or alkoxy each having up to 4 carbon atoms, alkylthio having up to 6 carbon atoms, aryl or aralkyl, aryloxy or arylthio optionally substituted by halogen and two of the radicals R 2 , R 3 , R 4 together can form an alicyclic or heterocyclic ring to which a further aromatic ring can be fused, and a process for their preparation by reacting phenacyl chlorides with hydroxylamines. The a-chloroacetophenone oxime ethers are valuable intermediates for the synthesis of fungicidal a-azolylacetophenone oxime ethers.
参考标题:Direct Synthesis Of 3-Acylindoles Through Rhodium(III)-Catalyzed Annulation OfN-Phenylamidines With α-Cl Ketones 作者:Jianhui Zhou,Jian Li,Yazhou Li,Chenglin Wu,Guoxue He,Qiaolan Yang,Yu Zhou,Hong Liu |发布日期:2018.12.7 摘要:Versatile 3-Acylindoles Through Rh(III)-Catalyzed C-H Activation And Annulation Cascade Of N-Phenylamidines With α-Cl Ketones Was Developed, In Which α-Cl Ketones Serve As Unusual One-Carbon (Sp3) Synthons. This Strategy Features High Regioselectivity, Efficiency, Wide Substrate Tolerance, And Mild Reaction Conditions, Which Further Underscore Its Synthetic Utility In Drug Molecule Synthesis.
合成参考文献
摘要:Matsunami, A.; Kayaki, Y.; Ikariya, T., Science of Synthesis: Catalytic Reduction in Organic Synthesis, (2018) 2, 47. 摘要:Wu, T.; Moeller, K. D., Science of Synthesis: Special Topics, (2021) 1, 490.