Mild, Efficient and Selective Silver Carbonate Mediated O-Alkylation of 4-Hydroxy-2-quinolones: Synthesis of 2,4-Dialkoxyquinolines
作者:Enrique L. Larghi、Ademir Farias Morel、Marcel Manke Selvero
DOI:10.1055/s-2005-918945
日期:——
The reaction of 4-hydroxy-2-quinolones with alkyl iodides, benzyl bromides and allyl bromides in benzene at room temperature, in the presence of Ag 2 CO 3 , afforded 2,4-dialkoxyquinolines in moderate to excellent yields. The process is highly regioselective and constitutes a new and mild one-pot alternative for the preparation of this class of compounds.
4-羟基-2-喹诺酮类与烷基碘、苄基溴和烯丙基溴在室温下在苯中,在Ag 2 CO 3 存在下反应,以中等至极好的收率得到2,4-二烷氧基喹啉。该方法具有高度区域选择性,构成了制备此类化合物的一种新的、温和的单锅替代方法。
Osborne, Alan G.; Dimitrova, Galya T.; Galbally, Paul, Journal of Chemical Research, Miniprint, 2002, # 1, p. 124 - 148
作者:Osborne, Alan G.、Dimitrova, Galya T.、Galbally, Paul、Hughes, David D.、Jones, Clare、Lipman, Anthony L.、Wilstead, Nicola
DOI:——
日期:——
Syntheses in the Quinoline Series. IV. 2,4-Disubstituted Quinoline Derivatives
作者:Fred J. Buchmann、Cliff S. Hamilton
DOI:10.1021/ja01258a036
日期:1942.6
Process for Producing Olefin Copolymerization Catalyst and Process for Producing Olefin Copolymer
申请人:NAKAHARA Shinya
公开号:US20080227937A1
公开(公告)日:2008-09-18
A process for producing an olefin copolymerization catalyst, comprising the step of contacting, with one another, (A) a solid catalyst component containing a titanium atom, a magnesium atom and a halogen atom, (B) an organoaluminum compound and/or organoaluminumoxy compound, and (C) a nitrogen-containing aromatic heterocyclic compound, whose one or more carbon atoms adjacent to its nitrogen atom are linked to an electron-donating group, or a group containing an electron-donating group; and a process for producing an olefin copolymer using the an olefin copolymerization catalyst.