摘要 克级合成并带有2-辛基十二烷基侧链的萘并[1,2- b ]噻吩和苯并[1,2- b:6,5- b' ]二噻吩4-羧酸酯的完整表征,以及描述了适合于它们插入π-共轭聚合物中的它们的甲氧基化和溴化衍生物。完全可溶且可加工的合成子是通过级联反应序列获得的,即直接芳基化和交叉羟醛缩合,这为适当的可商购试剂的环化和π延伸创造了一条有效途径。只要有可能,就将新报告的合成与文献合成相比较,使用“绿色化学指标”进行比较,从而显示出巨大的进步。 克级合成并带有2-辛基十二烷基侧链的萘并[1,2- b ]噻吩和苯并[1,2- b:6,5- b' ]二噻吩4-羧酸酯的完整表征,以及描述了适合于它们插入π-共轭聚合物中的它们的甲氧基化和溴化衍生物。完全可溶且可加工的合成子是通过级联反应序列获得的,即直接芳基化和交叉羟醛缩合,这为适当的可商购试剂的环化和π延伸创造了一条有效途径。只要有可能,就将新报告的合成与
Domino Direct Arylation and Cross-Aldol for Rapid Construction of Extended Polycyclic π-Scaffolds
作者:Andrea Nitti、Gabriele Bianchi、Riccardo Po、Timothy M. Swager、Dario Pasini
DOI:10.1021/jacs.7b03412
日期:2017.7.5
Five-membered aromatic heterocycles are a ubiquitous skeleton of pi-conjugated organic compounds, and their incorporation requires synthetic protocols that are not easily industrially sustainable or scalable. Improved methodologies for their insertion into pi-scaffolds are therefore necessary. We report an efficient and scalable protocol involving a one-pot cross-Aldol direct arylation reaction protocol for the rapid construction of thiophene- and furan-based pi-extended organic materials.