Stereoselective addition of Grignard reagents to sulfinimines derived from tartrate diol (threitol): Generation of chiral building blocks for the collective total synthesis of lentiginosine, conhydrine and methyldihydropalustramate
作者:Kavirayani R. Prasad、Vipin Ashok Rangari
DOI:10.1016/j.tet.2019.130496
日期:2019.9
tartaric acid diol was undertaken. It was observed that the chirality of the inherent tartrate moiety influences the diastereoselectivity of the resultant sulfinamides formed in the reaction. The formed products serve as excellent building blocks for the synthesis of natural products. This has been demonstrated in the collective total synthesis of lentiginosine, (+)-α-conhydrine and methyldihydropalustramate
对将格氏试剂添加到源自酒石酸二醇的亚磺胺中进行了系统的研究。观察到,固有酒石酸部分的手性影响反应中形成的亚磺酰胺的非对映选择性。形成的产品是合成天然产品的极好基础。这已在龙胆草碱,(+)-α-水合柠檬酸和甲基二氢palustramate的集体全合成中得到了证明。