Lewis acid-base 1,2-addition reactions: synthesis of pyrylium borates from en-ynoate precursors.

Wilkins, Lewis, Hamilton, Hugh, Kariuki, Benson ORCID: https://orcid.org/0000-0002-8658-3897, Hashmi, Stephen, Hansmann, Max and Melen, Rebecca ORCID: https://orcid.org/0000-0003-3142-2831 2015. Lewis acid-base 1,2-addition reactions: synthesis of pyrylium borates from en-ynoate precursors. Dalton Transactions 45 , pp. 5929-5932. 10.1039/C5DT03340C

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Abstract

Treatment of methyl (Z)-2-alken-4-ynoates with the strong Lewis acid tris(pentafluorophenyl) borane, B(C6F5)3, yield substituted zwitterionic pyrylium borate species via an intramolecular 6-endo-dig cyclisation reaction.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Schools > Chemistry
Subjects:	Q Science > QD Chemistry
Publisher:	Royal Society of Chemistry
ISSN:	1477-9226
Funders:	EPSRC
Date of First Compliant Deposit:	30 March 2016
Date of Acceptance:	22 September 2015
Last Modified:	02 May 2023 17:50
URI:	https://orca.cardiff.ac.uk/id/eprint/77032

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