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The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including by researchers from the Department of Computer & Information Sciences involved in mathematically structured programming, similarity and metric search, computer security, software systems, combinatronics and digital health.

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Tandem inverse electron demand Diels-Alder, retro Diels-Alder and intramolecular Diels-Alder sequences : one-pot synthesis of diaza-polycycles

Bromley, William and Gibson, Mairi and Lang, Stuart and Raw, Steven and Whitwood, Adrian and Taylor, Richard (2007) Tandem inverse electron demand Diels-Alder, retro Diels-Alder and intramolecular Diels-Alder sequences : one-pot synthesis of diaza-polycycles. Tetrahedron, 63 (26). pp. 6004-6014. ISSN 0040-4020

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Abstract

A new and straightforward methodology is described for the construction of complex nitrogen-containing polycycles from substituted 1,2,4-triazines and enamines, prepared in situ from carbonyl components and allylic amines. The transformation proceeds via a pericyclic reaction cascade (inverse electron demand Diels-Alder then retro Diels-Alder then intramolecular Diels-Alder) forming the polycyclic systems in good to excellent yield and with high diastereoselectivity in a one-pot procedure. The scope and limitations of the methodology are discribed as are preliminary studies to extend its synthetic utilitiy.