An intramolecular Mannich-type reaction, involving either an α-trifluoromethyl-1,3-aminoketal or a fluoral synthetic equivalent, was employed to prepare diastereoselectively α-trifluoromethylpiperidines. This simple strategy allows a facile access to a wide range of new α-trifluoromethyl saturated N-heterocyclic compounds.
通过分子内曼尼希式反应(涉及δ-三
氟甲基-1,3-
氨基酮或
氟合成等价物),制备了非对映选择性δ-三
氟甲基
哌啶。通过这种简单的策略,可以方便地获得多种新的δ-三
氟甲基饱和 N-
杂环化合物。