Efficient and Connective Assembly of Highly Functionalized Benzofurans Using o-Hydroxyphenones and Dichloroethylene
摘要:
The preparation of highly functionalized benzofurans by a unique and connective transformation is reported. Base-catalyzed condensation of o-hydroxyphenones with 1,1-dichloroethylene generates the corresponding chloromethylene furans. These labile intermediates undergo a facile rearrangement into benzofuran carbaldehydes under mild acidic conditions.
Efficient and Connective Assembly of Highly Functionalized Benzofurans Using o-Hydroxyphenones and Dichloroethylene
摘要:
The preparation of highly functionalized benzofurans by a unique and connective transformation is reported. Base-catalyzed condensation of o-hydroxyphenones with 1,1-dichloroethylene generates the corresponding chloromethylene furans. These labile intermediates undergo a facile rearrangement into benzofuran carbaldehydes under mild acidic conditions.
Efficient and Connective Assembly of Highly Functionalized Benzofurans Using <i>o</i>-Hydroxyphenones and Dichloroethylene
作者:Florian Schevenels、István E. Markó
DOI:10.1021/ol300186s
日期:2012.3.2
The preparation of highly functionalized benzofurans by a unique and connective transformation is reported. Base-catalyzed condensation of o-hydroxyphenones with 1,1-dichloroethylene generates the corresponding chloromethylene furans. These labile intermediates undergo a facile rearrangement into benzofuran carbaldehydes under mild acidic conditions.