A new, transformative methodology for the preparation of diketopyrrolopyrroles from aldehydes, primary amines, nitriles, and diethyl oxalacetate has been developed. It is now possible to prepare diketopyrrolopyrroles bearing an ordered arrangement of three different substituents from abundant and commercially available materials, allowing the independent regulation of all desired physicochemical properties
已开发出一种新的,可转化的方法,可从醛,
伯胺,腈和
草酸二乙酯制备二酮
吡咯并
吡咯。现在可以从大量可商购的材料制备带有三个不同取代基的有序排列的二酮
吡咯并
吡咯,从而可以独立调节所有所需的理化性质。第一次非常富电子(
咔唑-3-基,二甲基
氨基苯基,
吡咯并[3,2-b]
吡咯基)和位阻取代基(
萘-1-基,
喹啉-4-基、,啶-9-基)
咪唑并[1,5-a]
吡啶-1-基,2-
溴苯基等)可以通过适当的腈与
吡咯烷-2-酮中间体缩合而附加到二酮
吡咯并
吡咯核上。