Reaction of phosphinyl nitrosoalkenes with electron-rich heterocycles.

Here we described the behavior of phosphinyl nitrosoalkenes with indole, pyrrole and 2,5-dimethylpyrrole. 3-Substituted indoles have been prepared through the reaction of nitrosoalkenes with indole. The reaction of phosphinyl nitrosoalkenes with pyrrole leads to the formation of 2-substituted pyrroles, while the behavior of 2,5-dimethylpyrrole with these nitrosoalkenes affords bicyclic 1,2-oxazines. [ABSTRACT FROM AUTHOR]