Trapping of the Putative Cationic Intermediate in the Morin Rearrangement with Carbon Nucleophiles
作者:John D. Freed、David J. Hart、Nabi A. Magomedov
DOI:10.1021/jo0013406
日期:2001.2.1
This paper presents reactions in which the putative cationic intermediate in the Morin rearrangement is trapped by aromatic carbon nucleophiles (indoles and furans). For example, reaction of sulfoxide 27 with trifluoroacetic acid in chloroform provides, among other products, indole 29 and indoline 30. The indoline was shown to be in equilibrium with the nine-membered ring bridged indole 31. Other examples