Palladium-catalyzed allylic substitution assisted by 1,3,2-diazaphospholidine derivatives of (R,R)-N-naphthyltartarimide
作者:K. N. Gavrilov、E. A. Rastorguev、S. V. Zheglov、N. N. Groshkin、V. E. Boyko、A. S. Safronov、P. V. Petrovskii、V. A. Davankov
DOI:10.1007/s11172-010-0228-7
日期:2010.6
P,P-Bidentate diamidophosphite ligands containing the (3R,4R)-3,4-dioxy-1-(1-naphthyl)pyrrolidine-2,5-dione framework and 1,3,2-diazaphospholidine rings with the stereogenic P atoms were obtained. The use of these ligands provides up to 85% ee in Pd-catalyzed asymmetric amination of (E)-1,3-diphenylallyl acetate and up to 95% ee in its asymmetric alkylation with dimethyl malonate.
获得了含有(3R,4R)-3,4-二氧基-1-(1-萘基)吡咯烷-2,5-二酮框架和带有立体 P 原子的 1,3,2- 二氮磷啶环的 P,P-二叉二磷酸配体。在 Pd 催化下,(E)-1,3-二苯基烯丙基乙酸酯的不对称胺化反应中,这些配体的ee值高达 85%,而在其与丙二酸二甲酯的不对称烷基化反应中,ee值高达 95%。