GAUCIAZO M. A.; WOVKULICH P. M.; SMITH III A. B., TETRAHEDRON LETT. 1978, NO 47, 4661-4664
作者:GAUCIAZO M. A.、 WOVKULICH P. M.、 SMITH III A. B.
DOI:——
日期:——
Pd-Catalyzed Cycloaddition of Vinylcyclopentenes with Trimethylenemethane. Substituent Effect on [4+3]<i>vs</i>[3+2] Selectivity
作者:Barry M. Trost、Shoko Yamazaki
DOI:10.1246/cl.1994.2245
日期:1994.12
The Pd-catalyzed reaction of 2-vinylcyclopentenes 2 and 3 with trimethylenemethane gave [4+3] and [3+2] cycloadducts. Derivatization of 2-vinylcyclopentenones with bulky ketal substituents served to enhance seven-membered ring formation.