Deprotection of pinacolyl boronate esters via hydrolysis of intermediate potassium trifluoroborates
作者:Alexander K.L. Yuen、Craig A. Hutton
DOI:10.1016/j.tetlet.2005.09.101
日期:2005.11
deprotection of pinacolyl organoboronate esters is described. Reaction with excess potassium hydrogen fluoride produces the corresponding stable, crystalline potassium organotrifluoroborate salts. Treatment of the trifluoroborates with either inorganic base or trimethylsilyl chloride and water affords the corresponding organoboronic acid in high yield.
描述了对频哪醇有机硼酸酯脱保护的有效两步程序。与过量的氟化氢钾反应生成相应的稳定结晶的有机三氟硼酸钾盐。用无机碱或三甲基甲硅烷基氯和水处理三氟硼酸盐,可以高产率得到相应的有机硼酸。