Asymmetric synthesis of α-substituted alkylphosphonates based on symmetrical dialkyl phosphites
作者:O. I. Kolodiazhnyi、E. V. Grishkun、S. Sheiko、O. Demchuk、H. Thoennessen、P. Jones、R. Schmutzler
DOI:10.1007/bf02496414
日期:1999.8
Chiral C2-symmetrical dialkyl phosphites and C3-symmetrical trialkyl phosphites, derived from (−)-borneol, (−)-menthol, and 1,2∶5,6-di-O-isopropylidene-α-d-glucofuranose, were studied as the starting reagents for the preparation of chiral organophosphorus compounds. The reactions of C2-symmetrical dialkyl phosphites and C3-symmetrical trialkyl phosphites with aldehydes and amines or aldehydes are accompanied
研究了衍生自 (-)-冰片、(-)-薄荷醇和 1,2∶5,6-二-O-异亚丙基-α-d-呋喃葡萄糖的手性 C2-对称二烷基亚磷酸酯和 C3-对称三烷基亚磷酸酯作为制备手性有机磷化合物的起始试剂。C2-对称亚磷酸二烷基酯和 C3-对称亚磷酸三烷基酯与醛和胺或醛的反应伴随着在 α-碳原子上的不对称诱导,分别产生光学活性的 α-氨基烷基膦酸酯或 α-羟基烷基膦酸酯。反应的立体选择性取决于起始化合物的结构和反应条件。