3-[(1-Oxyl-2,2,5,5-tetramethyl-2,5-dihydropyrrole-3-carbonyloxy)-imino]-2-phenyl-3<i>H</i>-indole; A New Convenient Spin Label
作者:Elena Chiorboli、Lucedio Greci
DOI:10.1055/s-1986-31622
日期:——
The reaction of 3-chlorocarbonyl-2,2,5,5-tetramethyl-2, 5-dihydropyrrole-1-oxyl with 3-oximino-2-phenyl-3H-indole in aqueous sodium hydroxide affords 3-[(1-oxyl-2,2,5,5-tetramethyl-2, 5-dihydropyrrole-3-carbonyloxy)-imino]-3H-indole. This nitroxyl does not undergo noticeable decomposition at room temperature and can be considered as a new convenient spin-labeled activated carboxylic acid derivative. It reacts with primary and secondary amines under mild conditions to form the spin-labeled 2,2,5,5-tetramethyl-1-oxyl-2, 5-dihydropyrrole-3-carboxamides.
3-Clorocarbonyl-2,2,5,5-tetramethyl-2, 5-dihydropyrrole-1-oxyl 与 3-oximino-2-phenyl-3H-indole 在氢氧化钠水溶液中反应生成 3-[(1-oxyl-2,2,5,5-tetramethyl-2,5-dihydropyrrole-3-carbonyloxy)-imino]-3H-indole。这种硝基在室温下不会发生明显的分解,可视为一种新的方便的自旋标记活化羧酸衍生物。它能在温和的条件下与伯胺和仲胺反应,生成自旋标记的 2,2,5,5-四甲基-1-氧代-2,5-二氢吡咯-3-羧酰胺。