title: Vinyl azides derived from allenes: thermolysis leading to multisubstituted 1,4-pyrazines and Mn(III)-catalyzed photochemical reaction leading to pyrroles.
abstract: Thermolysis of phosphorus-based vinyl azides under solvent- and catalyst-free conditions furnished a new route for 1,4-pyrazines. A simple one-pot, Mn(III)-catalyzed photochemical route has been developed for multisubstituted pyrroles starting from allenes and 1,3-dicarbonyls via in situ-generated vinyl azides. The utility of new phosphorus-based pyrroles is also demonstrated in the Horner reaction. The structures of key products are unequivocally confirmed by X-ray crystallography.
authors.affiliation: School of Chemistry, University of Hyderabad, Hyderabad 500 046, AP, India.
authors.forename: K V
authors.initials: KV
authors.lastname: Sajna
authors.forename: K C
authors.initials: KC
authors.lastname: Kumara Swamy
mesh_terms: D001386:Azides / Q000737:chemistry*; D002384:Catalysis; D018360:Crystallography, X-Ray; D008345:Manganese / Q000737:chemistry*; D015394:Molecular Structure; D055668:Photochemical Processes; D011719:Pyrazines; D011758:Pyrroles / Q000737:chemistry*; D014753:Vinyl Compounds / Q000737:chemistry*
chemical_list: D001386:Azides; D011719:Pyrazines; D011758:Pyrroles; D014753:Vinyl Compounds; D008345:Manganese