Application of the double Pauson-Khand cyclization to the synthesis of bis(cyclopentadienes): preparation of phenyl-bridged bis(tetrahydroindenyl)titanium and zirconium dichlorides
作者:Ronald L. Halterman、Timothy M. Ramsey、Nathan A. Pailes、Masood A. Khan
DOI:10.1016/0022-328x(95)00107-2
日期:1995.7
6-dinyl)benzen. We utilized for the firstime in a bis(cyclopentadiene) synthesis the double Pauson-Khand cyclization and Shapiro-elimination methods. The double Pauson-Khand cyclization is also successful in the preparation of ethylene-bridged bis(cyclopentadienes). A novel iodine-promoted elimination of allyl methyl ethers was also applied in the preparation of bis(cyclopentadienes). The solid state structure
Synthesis of a novel ethylene-bis(tetrahydroindenyl) ligand containing a functionalized four-carbon tether
作者:Anthony P. Panarello、Johannes G. Khinast
DOI:10.1016/s0040-4039(03)00827-x
日期:2003.5
In this work we present an efficient synthesis of a novel ethylene-bis(2-methyl-tetrahydroindenyl) ligand, 2b, containing a tetheredfunctionalgroup. The tetheredfunctionalgroup may enable heterogenization of the homogeneous ligand on various solid supports. This strategy is the first attempt of incorporating a functionaltether into a bridged metallocene ligand without disrupting the ethane bridge