Method for the preparation of sulfonic acid esters from free sulfonic
acids
    7.
    发明授权
    Method for the preparation of sulfonic acid esters from free sulfonic acids 失效
    从游离磺酸制备磺酸酯的方法

    公开(公告)号:US3956354A

    公开(公告)日:1976-05-11

    申请号:US358213

    申请日:1973-05-07

    摘要: Sulfonic acids, particularly amido-substituted sulfonic acids and preferably acrylamidoalkanesulfonic acids, can be esterified by reaction with (A) an ester of phosphoric acid or (B) an adduct of an ester of a strong acid (preferably sulfuric acid) with an amide such as dimethylformamide. This method is especially useful for the preparation of lower alkyl esters, especially the methyl and ethyl esters. The esters are useful monomers, especially for copolymerization with acrylic compounds to produce polymers of improved dyeability.

    摘要翻译: 通过与(A)磷酸酯或(B)强酸(优选硫酸)的酯与酰胺的加成物与酰胺的反应,可以将磺酸,特别是酰氨基取代的磺酸,优选丙烯酰胺基烷基磺酸酯化 作为二甲基甲酰胺。 该方法特别适用于制备低级烷基酯,特别是甲基和乙酯。 酯是有用的单体,特别是与丙烯酸类化合物共聚以产生改进的可染性的聚合物。