Pd(OAc) 2 catalyzed synthesis of 2-aryl- and 2-heteroaryl- benzoxazoles and benzothiazoles in imidazolium ionic liquids (ILs) without additives and with recycling/reuse of the IL
A facile, high yielding, method for the synthesis of a library of 2-aryl- and 2-heteroaryl-benzoxazoles and benzothiazoles from readily available Schiff bases is reported employing catalytic amounts of Pd(OAc) 2 in imidazolium ionic liquids (bmim)BF 4 and (bmim)PF 6 without ligands and/or additives. Simple product isolation and recycling/re-use of the IL are additional advantages of this method. © 2012 Elsevier Ltd. All rights reserved.
Digital Object Identifier (DOI)
Kalkhambkar, & Laali, K. K. (2012). Pd(OAc)2 catalyzed synthesis of 2-aryl- and 2-heteroaryl-benzoxazoles and benzothiazoles in imidazolium ionic liquids (ILs) without additives and with recycling/reuse of the IL. Tetrahedron Letters, 53(32), 4212–4215. https://doi.org/10.1016/j.tetlet.2012.05.155