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.