Silver-Assisted, Iridium-Catalyzed Allylation of Bis[(pinacolato)boryl]methane Allows the Synthesis of Enantioenriched Homoallylic Organoboronic Esters
enantioselective approach of making chiral, β-substituted homoallylic organoboronic esters. In the presence of LiOtBu and a catalytic amount of silver salt, commercial bis[(pinacolato)boryl]methane participated in the iridium-catalyzed asymmetric allylation reactions, delivered a “CH2B(pin)” group, and yielded the title compounds from allylic carbonates. The synthetic utility of the prepared chiral
在此描述的是制备手性,β-取代的均烯丙基有机硼酸酯的对映选择性方法。在LiO t Bu和催化量的银盐存在下,商用双[(频哪醇硼烷基)硼]甲烷参加了铱催化的不对称烯丙基化反应,生成了“ CH 2 B(pin)”基团,并获得了标题烯丙基碳酸酯的化合物。制备的手性有机硼酸酯的合成用途通过将其转化为其他重要的化合物类别得到证明。
Ito, Tatsuya; Overman, Larry E.; Wang, Jocelyn, Journal of the American Chemical Society, 2010, vol. 132, p. 3272 - 3273