Accessing <i>N</i>-Acyl Azoles via Oxoammonium Salt-Mediated Oxidative Amidation
作者:John M. Ovian、Christopher B. Kelly、Vincent A. Pistritto、Nicholas E. Leadbeater
DOI:10.1021/acs.orglett.7b00060
日期:2017.3.17
An operationally simple, robust, metal-free approach to the synthesis of N-acyl azoles from both alcohols and aldehydes is described. Oxidative amidation is facilitated by a commercially available organic oxidant (4-acetamido-2,2,6,6-tetramethylpiperidine-1-oxoammonium tetrafluoroborate) and proceeds under very mild conditions for an array of structurally diverse substrates. Tandem reactions of these
Solvent- and additive-free oxidative amidation of aldehydes using a recyclable oxoammonium salt
作者:Arturo León Sandoval、Katrina E. Doherty、Geoffrey P. Wadey、Nicholas E. Leadbeater
DOI:10.1039/d2ob00307d
日期:——
and aliphatic aldehydes by means of an oxidative amidation reaction. The methodology employs a substoichiometric quantity of an oxoammoniumsalt as the oxidant. It avoids the need for additives such as a base, is run solvent-free, and the oxoammoniumsalt is recyclable.