作者:M. Akhtar、D.M. Bratby、J.C. Chadwick、G.I. Fray
DOI:10.1016/0040-4020(76)85144-7
日期:1976.1
The cycloaddition of hexachlorotropone to selected olefins, including 1,3-dienes, has been examined. Unlike tropone, which undergoes [6 + 4] cycloadditions with 1,3-dienes, only [4 + 2] processes were observed with hexachlorotropone. Its apparent preference for exo-addition (contrast tetrachlorocyclopentadienone) probably results from thermodynamic control of the endo : exo product ratios.
已经研究了六氯四氢环酮与包括1,3-二烯在内的所选烯烃的环加成反应。与托克酮与1,3-二烯经历[6 + 4]环加成反应不同,六氯托酮仅观察到[4 + 2]过程。其表观偏好外-addition(对比度tetrachlorocyclopentadienone)可能导致从热力学控制内:外产物比。