Expanding the versatility of trihalophenols as molecular templates to achieve a series of [2+2] cycloaddition reaction involving 1,2-bis(2-pyridyl)ethylene

Abstract

A series of [2 + 2] cycloaddition reactions involving trans-1,2-bis(2-pyridyl)ethylene that is templated by three 2,4,6-trihalophenols is reported. In each case, the co-crystal undergoes a quantitative and stereoselective photoreaction to...