A Two-Component Pericyclic Reaction for Synthesis of Substituted Benzofurans and Aryl−Quaternary Carbon Bonds1
摘要:
The reaction shown is presumed to be a new [3,3]-sigmatropic rearrangement involving an O-arylsulfoxonium species or related sulfurane, It allows a sulfoxide and a phenol to be joined and rearranged in one operation at or below room temperature, coupling an aromatic to a quaternary carbon and creating benzofurans or articulated dihydrobenzofurans in a number of examples.[Graphics]
A Two-Component Pericyclic Reaction for Synthesis of Substituted Benzofurans and Aryl−Quaternary Carbon Bonds<sup>1</sup>
作者:James B. Hendrickson、Martin A Walker
DOI:10.1021/ol000113n
日期:2000.9.1
The reaction shown is presumed to be a new [3,3]-sigmatropic rearrangement involving an O-arylsulfoxonium species or related sulfurane, It allows a sulfoxide and a phenol to be joined and rearranged in one operation at or below room temperature, coupling an aromatic to a quaternary carbon and creating benzofurans or articulated dihydrobenzofurans in a number of examples.[Graphics]
77. The synthesis of methyl- and dimethyl-dibenzofurans