Recyclable and reusable Pd(OAc)2/P(1-Nap)3/[bmim][PF6]/H2O system for the addition of arylboronic acids to aldehydes
作者:Hong Zhao、Mingzhu Cheng、Tinli Zhang、Mingzhong Cai
DOI:10.1016/j.jorganchem.2014.11.020
日期:2015.2
A stable and efficient Pd(OAc)2/P(1-Nap)3[tri(1-naphthyl)phosphine] catalytic system for the addition of arylboronic acids to aldehydes has been developed. In the presence of Pd(OAc)2 and P(1-Nap)3, the addition reaction of arylboronic acids with aldehydes was carried out smoothly at 65 °C to give a variety of carbinol derivatives in good to excellent yields using a mixture of [bmim][PF6] and water
已开发出稳定高效的Pd(OAc)2 / P(1-Nap)3 [三(1-萘基)膦]催化体系,用于将芳基硼酸加成至醛中。在Pd(OAc)2和P(1-Nap)3的存在下,芳基硼酸与醛的加成反应在65°C下平稳进行,得到多种甲醇衍生物,并使用[bmim] [PF 6 ]和水作为溶剂。产物的分离很容易通过用二乙醚和Pd(OAc)2 / P(1-Nap)3 / [bmim] [PF 6 ] / H 2萃取来进行。O系统可以轻松回收再利用六次,而不会显着降低催化活性。我们的系统不仅避免使用易挥发的THF或甲苯作为溶剂,而且解决了钯催化剂和这些膦配体再利用的基本问题。