Efficient Access to 2,6,8-Trisubstituted 4-Aminoquinazolines through Microwave-Assisted One-Pot Chemoselective Tris-Suzuki-Miyaura or S<sub>N</sub>Ar/Bis-Suzuki-Miyaura Reactions in Water
作者:Youssef Kabri、Maxime D. Crozet、Thierry Terme、Patrice Vanelle
DOI:10.1002/ejoc.201500162
日期:2015.6
An efficient, sequential, one-pot strategy for synthesizing polyfunctionalized quinazoline derivatives is presented. After selective amination of 6,8-dibromo-2,4-dichloroquinazoline at the C-4 position, 2,6,8-trisubstituted 4-aminoquinazoline derivatives were prepared through one-pot chemoselective sequential tris-Suzuki–Miyaura or SNAr/bis-Suzuki–Miyaura reactions under microwave irradiation in an
提出了一种用于合成多官能化喹唑啉衍生物的高效、顺序、一锅法。在 C-4 位选择性胺化 6,8-二溴-2,4-二氯喹唑啉后,通过一锅化学选择性顺序 tris-Suzuki-Miyaura 或 SNAr/bis 制备 2,6,8-三取代的 4-氨基喹唑啉衍生物-Suzuki-Miyaura 在水性介质中微波辐射下的反应。这种方法与各种硼酸一起使用,只需几步即可在环境友好的溶剂水中以良好至极好的收率提供多取代喹唑啉衍生物。