Abstract
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.
GRAPHICAL ABSTRACT
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Acknowledgements
The authors thank Ministerio de Economía, Industria y Competitividad (MINECO, Madrid CTQ-2015-67871R) and Departamento de Educación Universidades e Investigación of Gobierno Vasco (GV, IT 992-16) for supporting this work. UPV/EHU–SGIker technical support for HRMS and NMR spectra (MCINN, GV/EJ, and European Social Fund) is also gratefully acknowledged.