2-FC6H4, 3-FC6H4, 4-FC6H4, 2,4-F2C6H3, 3,5-F2C6H3, 2,3,4-F3C6H2, 2,4,6-F3C6H2, 3,4,5-F3C6H2) have been prepared and isolated from the reactions of the mono-, di-, or tri-fluorophenol with BCl3. The Lewis acidity of these borates has been determined by NMR spectroscopic and theoretical methods and compared to their well-established borane counterpart.
一系列
氟化三芳基
硼酸盐 B(OAr F ) 3 (Ar F = 2-FC 6 H 4 , 3-FC 6 H 4 , 4-FC 6 H 4 , 2,4-F 2 C 6 H 3 , 3, 5-F 2 C 6 H 3 , 2,3,4-F 3 C 6 H 2 , 2,4,6-F 3 C 6 H 2 , 3,4,5-F 3 C 6 H 2) 已从单
氟苯酚、二
氟苯酚或三
氟苯酚与 BCl 3的反应中制备和分离出来。这些
硼酸盐的
路易斯酸度已通过核磁共振光谱和理论方法确定,并与公认的
硼烷对应物进行了比较。