One-Pot Synthesis of Substituted Indole N-Oxides: TiCl4-Mediated Baylis-Hillman Reaction of α-Oxo Cyclic Ketene-S,S-acetal with o-Nitrobenzaldehydes and Subsequent Intramolecular Cyclization
One-Pot Synthesis of Substituted Indole N-Oxides: TiCl4-Mediated Baylis-Hillman Reaction of α-Oxo Cyclic Ketene-S,S-acetal with o-Nitrobenzaldehydes and Subsequent Intramolecular Cyclization