Pentaarylantimonies Ar5Sb (Ar = Ph, p-Tol) was reacted with triarylantimony bis(perfluorobenzoate) and bis(3,4,5-trifluorobenzoate) in toluene at elevated temperature to obtain tetraarylantimony fluorobenzoates in 90% yield. Triarylantimony bis(fluorobenzoates) were prepared in an yield of up to 98% from triarylstibine and fluorobenzoic acid by oxidative addition in ether in the presence of hydrogen peroxide.
摘要 三(对甲苯基)锑 (4-МеС 6 H 4 ) 3 Sb 与氯乙酸的反应以及三苯基锑Ph 3 Sb 与 3,4,5-三氟苯甲酸和 2,3-二氟苯甲酸在叔存在下的反应丁基氢过氧化物提供三芳基锑二羧酸盐 Ar 3 Sb[OC(O)R] 2,其中 Ar = p -Tol, R = CH 2 Cl ( I ), Ar = Ph, C 6 H 2 F 3 -3,4,5 ( II ), 和 C 6 H 3 F 2 -2,3 ( III)。根据 X 射线衍射数据(CIF 文件 CCDC 编号 1883320(I)、1979844(II)和 1980334(III)),化合物I - III 中的 Sb 原子具有三角双锥的配位。OSbO 轴角为 174.47(6)° ( I )、173.98(7)° ( II ) 和 175.98(6)° ( III )。化合物I 中的 Sb-O 和 Sb-С 键长分别为