A novel process for preparing amidoalkanesulfonic acids represented by formula (3) and their derivatives by reacting a nitrile compound (1) with p-hydroxyalkanesulfonic acid or its derivative (2) in conc. sulfuric acid. Of the compounds of the formula (3) and their derivatives, unsaturated amidophenyl- substitued alkanesulfonic acids represented by formula (4) and their derivatives, particularly, 2-acrylamido-2-phenylpropanesulfonic acid and its derivatives are copolymerized with other monomers to provide useful materials such as copolymer-coated solid substances, copolymer emulsions, and pigment-dispersing agent.
一种新工艺,通过腈化合物(1)与对羟基烷
磺酸或其衍
生物(2)在浓
硫酸中反应,制备以式(3)为代表的
氨基烷
磺酸及其衍
生物。在式 (3) 及其衍
生物中,式 (4) 所代表的不饱和
氨基苯基取代烷
磺酸及其衍
生物,特别是 2-
丙烯酰胺基-2-苯基
丙磺酸及其衍
生物,可与其他单体共聚,以提供有用的材料,如共聚物涂层固体物质、共聚物乳液和
颜料分散剂。