Catalytic Asymmetric Cyano-Phosphorylation of Aldehydes Promoted by Heterobimetallic YLi<sub>3</sub>tris(binaphthoxide) (YLB) Complex
作者:Masakatsu Shibasaki、Yumi Abiko、Noriyuki Yamagiwa、Mari Sugita、Jun Tian、Shigeki Matsunaga
DOI:10.1055/s-2004-832821
日期:——
A highly enantioselective cyano-phosphorylation of aldehydes catalyzed by YLi3tris(binaphthoxide) complex (YLB, 1) is described. Slow addition of diethyl cyanophosphonate (4) to aldehydes 5 in the presence of 1 (10 mol%), H2O (30 mol%), tris(2,6-dimethoxyphenyl)phosphine oxide (10 mol%, 3a), and BuLi (10 mol%) afforded cyanohydrin O-phosphates 6 in up to 98% yield and 97% ee.
本研究描述了在 YLi3 三(二萘氧化物)络合物(YLB,1)催化下对醛的高对映选择性氰基磷酸化反应。在 1(10 摩尔%)、H2O(30 摩尔%)、三(2,6-二甲氧基苯基)氧化膦(10 摩尔%,3a)和 BuLi(10 摩尔%)存在下,氰基膦酸二乙酯(4)与醛 5 缓慢相加,得到氰醇 O 型磷酸盐 6,收率高达 98%,ee 为 97%。