Isotopic labelling studies for a gold-catalysed skeletal rearrangement of alkynyl aziridines
Open Access
- 21 June 2011
- journal article
- research article
- Published by Beilstein Institut in Beilstein Journal of Organic Chemistry
- Vol. 7 (1), 839-846
- https://doi.org/10.3762/bjoc.7.96
Abstract
Isotopic labelling studies were performed to probe a proposed 1,2-aryl shift in the gold-catalysed cycloisomerisation of alkynyl aziridines into 2,4-disubstituted pyrroles. Two isotopomers of the expected skeletal rearrangement product were identified using 13C-labelling and led to a revised mechanism featuring two distinct skeletal rearrangements. The mechanistic proposal has been rationalised against the reaction of a range of 13C- and deuterium-labelled substrates.Keywords
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