Efficient and Convenient Nonaqueous Workup Procedure for the Preparation of Arylboronic Esters
作者:Ken-Tsung Wong、Yuh-Yih Chien、Yuan-Li Liao、Chang-Chih Lin、Meng-Yen Chou、Man-kit Leung
DOI:10.1021/jo011073j
日期:2002.2.1
An efficient one-pot synthetic protocol for the synthesis of arylboronic esters has been established. The concentrated addition mixture of trimethylborate with aryl Grignard reagents was treated with low molecular weight diols (ethylene glycol, 1,3-propandiol) and toluene, the corresponding arylboronic esters were isolated in a convenient way with high yields. The diols not only serve as water replacement
已经建立了用于合成芳基硼酸酯的有效的一锅合成方案。用低分子量二醇(乙二醇,1,3-丙二醇)和甲苯处理硼酸三甲酯与芳基格氏试剂的浓缩加成混合物,以方便的方式高产率地分离出相应的芳基硼酸酯。二醇不仅用作后处理步骤的水替代物,而且还用作制备芳基硼酸酯的试剂。