Facile Synthesis of 6-Trichloromethylpterin and 2-Chloro-3-trichloromethylquinoxaline along with a Library of Trichloromethyl Heterocycles UsingN-Chlorosuccinimide and Triphenyl Phosphine
McBee et al., Industrial and Engineering Chemistry, 39 <1947 389
作者:McBee et al.
DOI:——
日期:——
Fluoromethylpyridines
申请人:PURDUE RESEARCH FOUNDATION
公开号:US02516402A1
公开(公告)日:1950-07-25
Process for Producing Olefin Copolymerization Catalyst and Process for Producing Olefin Copolymer
申请人:NAKAHARA Shinya
公开号:US20090018012A1
公开(公告)日:2009-01-15
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-withdrawing group, or a group containing an electron-withdrawing group; and a process for producing an olefin copolymer using the an olefin copolymerization catalyst.