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Xin Yuan Dr. Shan‐Jun Zhang Dr. Wei Du Prof. Dr. Ying‐Chun Chen 《Chemistry (Weinheim an der Bergstrasse, Germany)》2016,22(31):11048-11052
β‐Trifluoromethyl (CF3) enones were proved to act as good dienophiles in asymmetric normal‐electron‐demand Diels–Alder cycloadditions with 2,4‐dienals under trienamine catalysis with a chiral secondary amine. The sequential reductive amination transformations with benzylamine produced cis‐ and trans‐fused chiral trifluoromethylated octahydroisoquinolines in a diastereodivergent manner by using NaBH(OAc)3 and NaBH3CN as the reductants, respectively. Moreover, other types of activated alkenes that bear a CF3 group have also been successfully utilized to construct a diverse range of chiral cyclic frameworks in high stereoselectivity. 相似文献
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