Lewis Acid-Promoted Reactions of Unsymmetrically Substituted Stilbenes with 2-Methoxy-1,4-benzoquinones: Stereoselective Synthesis of trans-2,3-Diaryl-2,3-dihydrobenzofurans
作者:Thomas A. Engler、Gregory A. Gfesser、Bill W. Draney
DOI:10.1021/jo00117a021
日期:1995.6
Lewis acid (SnCl4 or Ti(IV))-promoted reactions of 2-methoxy-1,4-benzoquinones with substituted (E)-4-methoxystilbenes stereoselectively yield trans-2-(4'-methoxyphenyl)-3-aryl-2,3-dihydrobenzofuran-5-ols in good yield.
Evaluation of a synthetic route to ε-viniferin based on a new method for the stereoselective preparation of 2,3-diaryl-2,3-dihydrobenzofurans
作者:Thomas A. Engler、Bill W. Draney、Gregory A. Gfesser
DOI:10.1016/0040-4039(94)88313-0
日期:1994.3
Lewis acid-promoted reactions of unsymmetrically substituted (E)-stilbenes with 2-methoxy-1,4-benzoquinones regio- and stereoselectively produce trans 2,3-diaryl-2,3-dihydrobenzofurans.