【摘要】 在30%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。更多还原

【Abstract】 The simple, economical and environmentally benign oxidation of sulfides to sulfones and sulfoxides in good yield was achieved by using 30%. aqueous hydrogen peroxide-acetic acid system. Selective oxidation to either the corresponding sulfones or sulfoxides was realized by carefully controlling the reaction temperature. Strongly nonselective sulfide, 4-ethoxycarbonyl-3-methylthio-1H-pyrazole,was converted smoothly to the corresponding sulfoxide and sulfone in excellent yields.更多还原