过渡金属过氧化合物是一类性能良好的催化剂，在有机合成中得到广泛的应用［１，２］．过氧多酸催化过氧化氢氧化有机物的反应，近年来倍受重视［３～５］．文献中对过氧多酸的报道多以钨、钼为主［６］，而性质相近的铌、钽报道则较少［７］．本文合成了组成为［（Ｃ４Ｈ... Transition metal peroxides are a class of well-behaved catalysts that are widely used in organic synthesis [1,2]. The reaction of peroxyacid to catalyze the oxidation of organic matter by hydrogen peroxide has received much attention in recent years [3 ~ 5]. Most of the reports of peroxo-polyacid in the literature are mainly tungsten and molybdenum [6], while similar properties of niobium and tantalum are reported less [7]. In this paper, the composition of [(C4H ...