Improved synthesis of 3-aryl isoxazoles containing fused aromatic rings.

Reference

Mirzaei, Y., Weaver, M., Steiger, S., Kearns, A., Gajewski, M., Rider, K., Beall, H., & Natale, N. (2012). Improved synthesis of 3-aryl isoxazoles containing fused aromatic rings. 68(50). https://doi.org/10.1016/j.tet.2012.09.084

Abstract

A critical comparison of methods to prepare sterically hindered 3-aryl isoxazoles containing fused aromatic rings using the nitrile oxide cycloaddition (NOC) reveal that modification of the method of Bode, Hachisu, Matsuura, and Suzuki (BHMS), utilizing either triethylamine as base or sodium enolates of the diketone, ketoester, and ketoamide dipolarophiles, respectively, was the method of choice for this transformation.