Qinghai Zhang, Wei Xu, Xiyan Lu
Jan 26, 2005
Citations
0
Influential Citations
49
Citations
Journal
The Journal of organic chemistry
Abstract
[reaction: see text] An efficient method for the synthesis of five-membered carbo- and heterocyclic compounds, including fused rings, was reported using acetate as a nucleophile in the cyclization of 1,6-enynes under palladium(II) catalysis. The reaction is initiated by trans-acetoxypalladation of the alkynes and quenched by either trans- or cis-deacetoxypalladation in the presence of 2,2'-bipyridine as the ligand. An example of the catalytic asymmetric cyclization is presented with moderate enantioselectivity using chiral bisoxazoline ligand.