Reaction of pyrroles with naphthoquinones. Synthesis of new pyrrolylnaphthoquinone dyes
作者:Claude Lion、Richard Baudry、Mir Hedayatullah、Louis Da Conceição、Michel Hocquaux、Sylvie Genard、Jean Maignan
DOI:10.1002/jhet.5570370638
日期:2000.11
The reaction of 1,4-naphthoquinone (1) with N-alkylpyrroles (2) gives a mixture of 2-(pyrrol-2-yl)-1,4-naphthoquinones (3) and 2,5-bis(1,4-naphthoquinon-2-yl)pyrroles (4). The yields and the ratios of these two products depend greatly on the experimental conditions. The reaction has been extended to 5-hydroxy-1,4-naphthoquinone (juglone, 5) and 1,2-naphthoquinone (6). New pyrrolylnaphthoquinones are
1,4-萘醌(1)与N-烷基吡咯(2)的反应生成了2-(吡咯-2-基)-1,4-萘醌(3)和2,5-双(1,4)的混合物-萘醌-2-基)吡咯(4)。这两种产物的产率和比例在很大程度上取决于实验条件。该反应已扩展至5-羟基-1,4-萘醌(juglone,5)和1,2-萘醌(6)。获得了新的吡咯烷基萘醌。