STUDIES ON PD-II-CATALYZED CYCLIZATION OF 4'-HYDROXY-2'-ALKENYL 2-ALKYNOATES

Authors
MA SM LU XY
Citation
Sm. Ma et Xy. Lu, STUDIES ON PD-II-CATALYZED CYCLIZATION OF 4'-HYDROXY-2'-ALKENYL 2-ALKYNOATES, Journal of organometallic chemistry, 447(2), 1993, pp. 305-309
Citations number
22
Journal title
Journal of organometallic chemistry → ACNP
ISSN journal
0022328X
Volume
447
Issue
2
Year of publication
1993
Pages
305 - 309
Database
ISI
SICI code
0022-328X(1993)447:2<305:SOPCO4>2.0.ZU;2-4
Abstract
-(Z)-Halomethylene-beta-vinyl-gamma-butyrolactones and methylene-beta- (2'-alkanonyl)-gamma-butyrolactones were obtained highly stereoselecti vely from Pd(II)-catalyzed cyclization of 4'-hydroxy-2-alkenyl 2-alkyn oates. A mechanism involving halopalladation, intramolecular insertion , beta-OH elimination or beta-H elimination is discussed.