The reactivity and chemo-, regio- and diastreo-selectivity of tosylmethyl isocyanides (TosMIC) are investigated in Van Leusen type [3 + 2] cycloaddition reactions with the various activate cyclic ketones and double CC bonds in the synthesis of spirooxazolines, spiropyrrolines and chromeno[3,4-c]pyrrols in good to excellent yields under catalyst-free conditions without any activation at ambient temperature
在Van Leusen型[3 + 2]环加成反应中研究了
甲苯磺酰基甲基异
氰化物(TosMIC)的反应性和
化学选择性,区域选择性和二
异丁烯二选择性,其中螺环
恶唑啉,螺
吡咯啉和chromeno [3,4- c ]
吡咯在无催化剂条件下的收率好至极好,在环境温度下没有任何活化作用。