The simple, economical and environmentally benign oxidation of sulfides to sulfones and sulfoxides in good yield was achieved by using 30%.

• 在30%25双氧水-乙酸体系中,严格控制反应温度可使3-甲硫基-4-乙氧羰基-5-氨基吡唑氧化成单一的3-甲砜基-4-乙氧羰基-5-氨基吡唑或3-甲亚砜基-4-乙氧羰基-5-氨基吡唑。