A New and Productive Route to 1-Heteroarylcyclopropanols
作者:Vladimir N. Belov、Andrei I. Savchenko、Viktor V. Sokolov、Alexander Straub、Armin de Meijere
DOI:10.1002/ejoc.200390093
日期:2003.2
hoxyacrylonitrile (4-All) was designed and prepared in five steps (58% overall yield) from ethyl cyclopropylidenacetate as a valuable precursor to various 1-heteroarylcyclopropanols. Its condensation with amidines, guanidine, hydrazine, and methyl thioglycolate and subsequent removal of the allyl protecting group yields 1-heteroarylcyclopropanols such as 1-OH (36% over 2 steps), a very potent NO-independent