Synthesis of Diverse Aryl-and Heteroaryl-annulated[a]-Carbazoles via Palladium-catalyzed Oxidative Cycloaromarization

• Main Authors: Bing-Chiuan Kuo, 郭秉銓
• Other Authors: Hom Man Lee
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/90165842864222463380

碩士 === 國立彰化師範大學 === 化學系 === 101 === Palladium complex 1b was employed in catalyzing the direct arylation of N-methylindole with aryl halides obtaining a range of desired coupled products 3 with yields in the range of 42–70 %. The emission properties of these coupled products were investigated and the quatum yields were obtained. Since carbazoles are potential materials for OLED applications, we investigated the annulations of 2-aryl and 2-heteroarylindoles 3 with diynes. The anulations involves two successive carbon-carbon bond formation steps. A new palladium catalyst 3b was prepared for these reactions and the X-ray structure of the metal complex was obtained. Several desired carbazoles derivatives were sucessfully obtained with medium yields.