Catalytic and noncatalytic conversions of tertiary phosphines to their oxides by hydrogen peroxide have been investigated. The catalyst is methylrhenium trioxide, CH[sub 3]ReO[sub 3]. The kinetics were investigated in acetonitrile-water (1:1 by volume) at 25[degree]C. Stepwise interactions between CH[sub 3]ReO[sub 3] and H[sub 2]O[sub 2] form CH[sub 3]Re([eta][sup 2]-O[sub 2])(O)[sub 2](OI[sub 2])
已经研究了通过
过氧化氢将叔膦催化和非催化转化为它们的氧化物。催化剂是三氧化甲基
铼,CH[sub 3]ReO[sub 3]。在 25°C 下在
乙腈-
水(体积比为 1:1)中研究动力学。CH[sub 3]ReO[sub 3]和H[sub 2]O[sub 2]之间的逐步相互作用形成CH[sub 3]Re([η][sup 2]-O[sub 2])(O)[子 2](OI[子 2])。A,和 CH[sub 3]Re([η][sup 2]-O[sub 2])[sub 2](O)(OH[sub 2]),B。在 CH[sub 3]CN-H [sub 2]O (1:1 v/v) 平衡常数为 K[sub 1] = 13 [+-] 2 L mol[sup [minus]1] 和 K[sub 2] = 136 [+-] 28 L mol[sup [minus]1] 在 pH 1.0 和 25°C。在该介质中形成 A