Synthesis of polymers bearing sulfoxide groups by oxidation of monothio-orthoesters and their rearrangement into carboxylic ester-containing monomers and polymers
作者:Huu-Nhân Trân、Thi-Nhàn Pham
DOI:10.1016/s0040-4020(00)01132-7
日期:2001.2
corresponding S-oxides. The chemoselective conversion of alkythio group into a sulfoxide moiety was achieved with monomers, polymers and copolymers bearing monothio-orthoester functionality to yield the first examples of sulfoxide monothio-orthoesters. These compounds are rather unstable and undergo a novel rearrangement to carboxylic esters and (co)polyesters at room temperature. The process is proposed
含有一硫代原酸酯基团的单体,聚合物和共聚物与间-氯过氧苯甲酸在CH 2 Cl 2中在20℃下反应,得到相应的S-氧化物。用带有一硫代原酸酯官能团的单体,聚合物和共聚物将烷硫基基团化学选择性转化为亚砜部分,得到亚砜一硫代原酸酯的第一个实例。这些化合物非常不稳定,并且在室温下会发生新的重排反应,生成羧酸酯和(共)聚酯。提出该方法作为制备在侧链中具有羧酸酯官能的(共)聚合物的方便的合成途径。