Heilmittelchemische Studien in der heterocyclischen Reihe. 8. Mitteilung. Pyridazine V. Alkylierungen und Umlagerungen in der Reihe des cyclischen Maleinsäurehydrazids
作者:K. Eichenberger、A. Staehelin、J. Druey
DOI:10.1002/hlca.19540370325
日期:——
1. The reaction of the cyclic hydrazide and phenylhydrazide of maleic acid and of some derivatives thereof with dimethyl sulfate is investigated and the structure of the reaction products is established.
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.