A Direct, Regioselective and Atom-Economical Synthesis of 3-Aroyl-N-hydroxy-5-nitroindoles by Cycloaddition of 4-Nitronitrosobenzene with AlkynonesLuca Scapinello 1, Angelo Maspero 1, Stefano Tollari 1, Giovanni Palmisano 1, Kenneth M Nicholas 2, Andrea Penoni 1
1Dipartimento di Scienza e Alta Tecnologia, Università degli Studi dell'Insubria, 2Department of Chemistry and Biochemistry, University of Oklahoma, Stephenson Life Sciences Research Center
3-Aroyl-N-hydroxy-5-nitroindoles were synthesized by cycloaddition of 4-nitronitrosobenzene with a conjugated terminal alkynone in a one-step thermal procedure. Preparation of the nitrosoarene and of the alkynones were adequately reported and respectively through oxidation procedures on the corresponding aniline and on the alkynol.
