One step synthesis of 2-alkenylchromanes via inverse electron-demand Hetero-Diels–Alder reaction of o -quinone methide with unactivated dienes
作者:Jian Liu、Xiaoxiao Wang、Lubin Xu、Zhihui Hao、Liang Wang、Jian Xiao
DOI:10.1016/j.tet.2016.10.027
日期:2016.11
The synthetically important 2-alkenylchromane derivatives were constructed in good yields under metal-free condition via inverse electron demand Hetero-Diels–Alder reaction of o-quinone methides with unactivated dienes. This strategy features mild condition, good diastereoselectivity and wide substrate scope.
合成上重要的2-烯基苯并二氢吡喃衍生物是在无金属条件下通过反电子需求的邻醌甲基化物与未活化的二烯的杂Diels-Alder反应制备的。该策略具有条件温和,非对映选择性好和底物范围广的特点。