Synthesis of 2,7-Dibromo-9h-carbazole and Its N-alkylation under Microwave Activation Conditions in a Flow-Type Microwave Reactor
Materials today proceedings(2022)
Abstract
One of the most popular building blocks for producing organic semiconductors is 2,7-dibromo-9H-carbazole and its derivatives. Building blocks based on 9H-carbazole are among the most expensive building blocks. The article presents new, highly effective, and “green” methods for the synthesis of 2,7-dibromo-9H-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.
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Key words
2,7-dibromo-9H-carbazole,2,7-dibromo-N-alkylcarbazole,Cadogan’s reaction,Building block,Photovoltaic polymer
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