Reactions of 1-bromo-1-nitro-3,3,3-trichloropropene with acetylacetone and cyclohexane-1,3-dione
文摘
Reactions of 1-bromo-1-nitro-3,3,3-trichloropropene with acetylacetone, dihydroresorcinol, and dimedone afforded substituted dihydrofuran and hexahydrobenzofurans containing nitro and trichloromethyl functionalities. Their structure was established by spectroscopic (IR, UV, 1H, 13C–{1H} NMR) methods and X-ray diffraction analysis. Keywords 1-bromo-1-nitro-3,3,3-trichloropropene acetylacetone 1,3-cyclohexanedione Michael reaction heterocyclization