explore efficient synthetic approaches for producing PDCAs in high yields. Here, we report a five-step synthesis route for N-substituted PDCAs starting from pyrrole, with total yields up to 42%. The synthetic approach allowed the introduction of several different functional moieties to the pyrrole backbone, such as aliphatic saturated and unsaturated side-chains, as well as benzylic groups.
吡咯-2,5-二
羧酸(
PDCA)是一种杂环芳香族二
羧酸,可能成为聚酯生产的新单体。与已用于生产聚
呋喃甲酸乙二醇酯(PEF)的结构相关的
生物基
呋喃-2,5-二
甲酸(
FDCA)相比,
PDCA显示出优异的潜力,因为其氮可以进一步衍生化,从而使调节含有
PDCA的聚合物的性能。有鉴于此,我们认识到需要探索有效的合成方法来高产率生产
PDCA。在这里,我们报道了一种以
吡咯为起始原料的 N-取代
PDCA 的五步合成路线,总收率高达 42%。该合成方法允许在
吡咯主链上引入几种不同的功能部分,例如脂肪族饱和和不饱和侧链以及苄基。