Asymmetric Synthesis of Tetrahydroisoquinoline Derivatives through 1,3-Dipolar Cycloaddition of C,N-Cyclic Azomethine Imines with Allyl Alkyl Ketones
作者:Guipeng Feng、Guoyang Ma、Wenyan Chen、Shaohong Xu、Kaikai Wang、Shaoyan Wang
DOI:10.3390/molecules26102969
日期:——
[3 + 2] A 1,3-Dipolar cycloaddition of C,N-cyclic azomethine imines with allyl alkyl ketones has been achieved. The reaction proceeds under mild conditions and tolerates a wide range of functional groups. An array of tetrahydroisoquinoline derivatives is generally constructed with good diastereoselectivities and enantioselectivities (up to >25:1 dr, >95% ee). Moreover, the absolute configuration of
[3 + 2]已实现C,N-环甲亚胺亚胺与烯丙基烷基酮的1,3-偶极环加成反应。反应在温和的条件下进行,并能耐受各种官能团。通常以良好的非对映选择性和对映选择性(高达> 25:1 dr,> 95%ee)构造一系列四氢异喹啉衍生物。此外,事先通过使用量子电子圆二色性计算和ECD光谱法确定了产物的绝对构型。