Synthesis of Functionalized γ-Spirolactone and 2-Oxabicyclo[3.3.0]octane Derivatives from Nucleophilic Oxirane Ring Opening
作者:Margareth Rôse de L. Santos、Eliezer J. Barreiro、Raimundo Braz-Filho、Carlos Alberto M. Fraga
DOI:10.1016/s0040-4020(00)00442-7
日期:2000.7
Methyl 1-(2-oxiranylmethyl)-2-oxo-1-cyclopentanecarboxylate (4) was subjected to the nucleophilicringopening reaction, leading to the formation of the functionalized 2-oxaspiro[4.4]nonane and 2-oxabicyclo[3.3.0]octane derivatives, which are important structural sub-unit present in several classes of bioactive compounds. The products obtained were characterized on the basis of spectral data, including