Titanium and zirconium benzofuranoxides. Crystal structures and catalytic properties |
| |
Authors: | Krauzy-Dziedzic Katarzyna Ejfler Jolanta Szafert Sławomir Sobota Piotr |
| |
Institution: | Department of Chemistry, University of Wroc?aw, F. Joliot-Curie 14, 50-383, Wroc?aw, Poland. |
| |
Abstract: | Reactions of Ti(OiPr)4 or Zr(OEt)4 with 4 equivalents of 2,3-dihydro-2,2-dimethyl-7-benzofuranol (ddbfoH) in toluene gave neutral complexes that in the solid state are dimers of Ti(micro-ddbfo)2(ddbfo)6] and Zr(ddbfo)3(EtOH)(micro-EtO)]2 composition. The former could also be conveniently synthesized in a direct reaction of TiCl4 with ddbfoH. This air-stable aryloxo compound was found to initiate living ring-opening polymerization of lactides affording polyesters with narrow molecular weight distribution. It also catalyzed addition of terminal acetylenes to aryl aldehydes. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|