Pseudoesters and derivatives. XXIII Reaction of 3-bromo-5-methoxyfuran-2(5)-one with nucleophiles. Formation of cyclopropane derivatives
作者:Francisco Fariña(rk)、M.Carmen Maestro、M.Rosario Martín、M.Victoria Martín、Félix Sánchez、M.Luisa Soria
DOI:10.1016/s0040-4020(01)87341-5
日期:1986.1
The reactions of 3-bromo-5-methoxyfuran-2 (5 )-one () with nucleophiles in acetonitrile, in the presence of potassium carbonate and tetrabutylammonium bromide as a catalyst, are reported. The bromofuranone reacts, with several carbon and oxygen nucleophiles to give the cyclopropane bis-lactones , , or . When is reacted with diethylamine or propane-2-thiol in a 2:1 ratio, similar cyclopropane bis-lactones