Synthesis of 2, 7-dibromo-9H-carbazole and its N-alkylation under microwave activation conditions in a flow-type microwave reactor. (2022)

• Record Type: Journal Article
• Authors: Khrustalev, Dmitriy; Yedrissov, Azamat; Vetrova, Anastassiya; Khrustaleva, Anastassiya
• Is Part Of: Materials today. Volume 49:Part 6(2022)
• Page Start: 2449
• Page End: 2454
• Publication Date: 2022
• Subjects: 2, 7-dibromo-9H-carbazole -- 2, 7-dibromo-N-alkylcarbazole -- Cadogan's reaction -- Building block -- Photovoltaic polymer; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2020.11.205
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: One of the most popular building blocks for producing organic semiconductors is 2, 7-dibromo-9 H -carbazole and its derivatives. Building blocks based on 9 H -carbazole are among the most expensive building blocks. The article presents new, highly effective, and "green" methods for the synthesis of 2, 7-dibromo-9 H -carbazole and its derivatives under microwave irradiation. The use of a flow-type microwave reactor significantly reduced the synthesis time. The methods described differ in efficiency, simplicity, performance, and a significant reduction in time compared to classical methods. The research was conducted in accordance with the principles of green chemistry.