Steric and electronic effects on the Weiss reaction. Isolation of 1∶1 adducts
作者:Scott G. Van Ornum、Jin Li、Greg G. Kubiak、James M. Cook
DOI:10.1039/a701232b
日期:——
with benzil, pyridil, thenil, furil and phenanthrenequinone, steric effects play the major role in the overall success of this condensation to provide substituted cis-bicyclo[3.3.0]octane-3,7-diones. Moreover a trihydroxyindene [5.6] system (see 26) has been isolated for the first time under the Weiss conditions which provides additional support for the existence of cyclopentenone intermediates in this