Issue 84, 2016

Microwave-mediated Newman–Kwart rearrangement in water

Abstract

For the first time the unimolecular Newman–Kwart rearrangement is performed in pure water. The elevated temperatures required for the 1,3-aryl shift are easily accomplished by microwave irradiation. Differently functionalized substrates underline the expected influence on the reaction rate regarding the electronic and steric effects of the substituents. The utilization of supramolecular additives enables an increase in conversion. Besides, the conduction in a microwave reactor allows for a rapid collection of kinetic data affording the reaction rate constants of the rearrangement of distinct substrates as well as the Arrhenius constant and activation parameters of the conversion of 2- and 4-nitrophenyl-O-thiocarbamate.

Graphical abstract: Microwave-mediated Newman–Kwart rearrangement in water

Supplementary files

Article information

Article type
Paper
Submitted
16 Aug 2016
Accepted
18 Aug 2016
First published
19 Aug 2016
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2016,6, 80692-80699

Microwave-mediated Newman–Kwart rearrangement in water

I. Hoffmann and J. Schatz, RSC Adv., 2016, 6, 80692 DOI: 10.1039/C6RA20676J

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