Palladium-catalyzed carbenoid based N–H bond insertions: application to the synthesis of chiral α-amino esters
作者:Gang Liu、Jian Li、Lin Qiu、Li Liu、Guangyang Xu、Bing Ma、Jiangtao Sun
DOI:10.1039/c3ob41331d
日期:——
A highly efficient palladium-catalyzed carbenoid based NâH bond insertion has been developed. The α-amino esters were obtained in high isolated yields. Moreover, by choosing a suitable chiral auxiliary, stereoselective Pd-catalyzed NâH insertion has been realized. The chiral α-amino esters were obtained in high yields (up to 91%) and with excellent diastereoselectivities (d.r. > 19â:â1).
开发了一种高效的钯催化基于卡宾的NâH键插入反应。得到了高产率的α-氨基酸酯。此外,通过选择合适的立体辅助剂,实现了立体选择性的Pd催化NâH插入反应。得到了高产率(高达91%)和优异的非对映选择性(d.r. > 19:1)的手性α-氨基酸酯。