4,6,8-Triarylquinoline-3-carbaldehyde Derivatives: Synthesis and Photophysical Properties
作者:Malose Mphahlele、Adewale Adeloye
DOI:10.3390/molecules181215769
日期:——
Palladium catalyzed Suzuki-Miyaura cross-coupling of 6,8-dibromo-4-chloroquinoline-3-carbaldehyde with arylboronic and arylvinylboronic acid derivatives in the presence of potassium carbonate in aqueous dioxane afforded the corresponding 4,6,8-triarylquinoline-3-carbaldehydes, exclusively. These products were transformed into 4,6,8-triaryl-3-(4-fluorophenyl)amino)-N-(quinolin-3-yl)methylenes and their 4,6,8-triaryl-quinoline-3-methanol derivatives. The absorption and emission spectra were measured for the 4,6,8-triarylquinoline-3-carbaldehydes and their derivatives in selected solvents of different polarity.
钯催化的铃木-宫浦交叉偶联反应中,6,8-二溴-4-氯喹啉-3-甲醛与芳基硼酸和芳基乙烯基硼酸衍生物在碳酸钾存在下于水相二恶烷中进行了反应,专门得到相应的4,6,8-三芳基喹啉-3-甲醛。这些产物进一步转化为4,6,8-三芳基-3-(4-氟苯基)氨基-N-(喹啉-3-基)亚甲基及其4,6,8-三芳基-喹啉-3-甲醇衍生物。在不同极性的选定溶剂中测量了4,6,8-三芳基喹啉-3-甲醛及其衍生物的吸收和发射光谱。