ChemInform Abstract: Facile Rearrangements of a Vinylogous α-Hydroxy-β-dicarbonyl Substrate Involving an Apparent Oxirane C-C Bond Scission

Autor: Ondrej Hylse, Roman Kučera, Jakub Švenda, Michal Babiak
Rok vydání: 2016
Předmět:
Zdroj: ChemInform. 47
ISSN: 0931-7597
Popis: alpha-Hydroxy-beta-dicarbonyls are known to undergo base-induced rearrangement to alpha-acyloxy carbonyls by a mechanism believed to involve an oxirane C-C bond scission step. Herein, we report the first example of this process in a vinylogous system. An attempt to access the protected form of the putative oxirane intermediate revealed an additional rearrangement pathway that was available to the substrate. Oxirane C-C bond cleavage mechanisms were invoked to explain both isomerizations. (C) 2015 Elsevier Ltd. All rights reserved.
Databáze: OpenAIRE