The asymmetric anti-aldol addition of ketone-derived donors and aldehyde acceptors is described. Asymmetric induction is achieved through the use of chiral N-amino cyclic carbamate (ACC) auxiliaries. The transformation exhibits essentially perfect anti-diastereoselectivity and enantioselectivity, and has the unusual feature of proceeding via thermodynamic, rather than kinetic control.
报道了酮衍生供体与醛受体之间的非对称反向aldol加成反应。通过使用手性N-
氨基环状
氨基甲酸酯(ACC)辅基实现了不对称诱导。该转化反应表现出几乎完美的反向非对映选择性和对映选择性,并且具有通过热力学控制而非动力学控制的特殊特征。