The gem-Dialkyl Effect in Electron Transfer Reactions: Rapid Synthesis of Seven-Membered Rings through an Electrochemical Annulation
摘要:
An electrochemical furan annulation strategy has been developed for the synthesis of seven-membered rings. Key to the success of the annulation is the placement of a gem-dialkyl group in the tether. Voltammetric studies indicate that this effect lowers the oxidation potential by approximately 110 mV.
Annulated heterocycles through a radical-cation cyclization: synthetic and mechanistic studies
作者:Jeffrey B. Sperry、Dennis L. Wright
DOI:10.1016/j.tet.2006.03.058
日期:2006.7
and thiophenes, especially reactions leading to dearomatization of the nucleus, make them highly versatile synthons for complex molecule construction. As part of a program to exploit this intrinsic reactivity, we have developed a convenient method to prepare annulated versions of these heterocycles. The strategy is based on a two-step annulation involving the initial conjugate addition of a heteroaryl
The <i>gem-</i>Dialkyl Effect in Electron Transfer Reactions: Rapid Synthesis of Seven-Membered Rings through an Electrochemical Annulation
作者:Jeffrey B. Sperry、Dennis L. Wright
DOI:10.1021/ja051826+
日期:2005.6.1
An electrochemical furan annulation strategy has been developed for the synthesis of seven-membered rings. Key to the success of the annulation is the placement of a gem-dialkyl group in the tether. Voltammetric studies indicate that this effect lowers the oxidation potential by approximately 110 mV.