Synthesis and unusual [2+2] cycloaddition reactions of haloacetylenes activated with the trifluoroacetyl group
作者:A. B. Koldobskii、N. P. Tsvetkov、P. V. Verteletskii、I. A. Godovikov、V. N. Kalinin
DOI:10.1007/s11172-009-0191-3
日期:2009.7
Halogenated trifluoroacetylacetylenes have been synthesized for the first time. It was shown that they undergo formally forbidden by the orbital-symmetry rules [2+2] cycloaddition reactions with nonactivated alkenes in the absence of light and catalyst. A possible mechanism for this transformation is suggested.