A method of producing alkali metal benzenesulfinates having the general formula of
wherein M represents Na or K, which comprises: reacting nitrophenylphenyl sulfones having the general formula of
wherein n is an integer of 1 or 2, with alkali metal thiophenolates having the general formula of
in solvents.
The reaction produces also nitrophenylphenyl sulfides as by-products in equimolar amounts to the alkali metal benzenesulfinates, and the oxidation of the sulfides provides the starting nitrophenylphenyl sulfones.
A method of producing the nitrophenylphenyl sulfones is also provided wherein the sulfides are oxidized with hydrogen peroxide in the presence both of water-soluble tungstates or molybdates and of phase transfer catalysts in a two-phase heterogeneous solvent.
一种生产通式为 其中 M 代表 Na 或 K 的碱
金属
苯磺酸盐的方法,包括:通式为 其中 n 为 1 或 2 的整数的
硝基苯基砜与通式为 的碱
金属
噻吩酚酸盐在溶剂中反应。 反应还产生与碱
金属
苯磺酸盐等摩尔量的
硝基苯基
硫化物作为副产物,
硫化物的氧化提供了起始的
硝基苯基砜。 还提供了一种生产
硝基苯基砜的方法,其中
硫化物在
水溶性
钨酸盐或
钼酸盐以及相转移催化剂的存在下,在两相异质溶剂中用
过氧化氢氧化。