作者:Rai, Shweta、Patil, Basavarajagouda E.、Kumari, Priti、Mainkar, Prathama S.、Prasanthkumar, Seelam、Adepu, Raju、Chandrasekhar, Srivari
DOI:10.1021/acs.joc.4c01093
日期:——
strategy for the synthesis of fused carbazoles is developed using indolyl β-ketonitrile in a cascade manner. The reaction sequence involves aryne-mediated [2 + 2] cycloaddition cleavage and intramolecular Michael addition, followed by oxidation under transition-metal-free reaction conditions. Subsequently, conversion of benzo[b]carbazole-6-carbonitrile to carbazole quinone is observed upon prolongation
使用吲哚基β-酮腈以级联方式开发了合成稠合咔唑的芳炔环化策略。反应顺序涉及芳基介导的[2 + 2]环加成裂解和分子内迈克尔加成,然后在无过渡金属的反应条件下进行氧化。随后,随着反应时间的延长,观察到苯并[ b ]咔唑-6-甲腈转化为咔唑醌。此外,这些材料表现出高量子效率,促进了发光二极管的应用。