Issue 6, 2021

The oxa-Michael reaction in the synthesis of 5- and 6-membered oxygen-containing heterocycles

Abstract

The oxa-Michael reaction (OMR) offers the most effective and straightforward route to the synthesis of a wide range of 5- and 6-membered oxygen-containing heterocycles including tetrahydropyrans, tetrahydrofurans, 1,4 dioxanes, isoxazolidines, isoxazolines, γ-lactones and related γ-butenolides. These molecular frameworks are frequently featured in numerous biologically active substances. Moreover, the emergence of organocatalytic asymmetric OMR has empowered access to a variety of diverse oxygen-containing heterocycles in a highly enantio- and/or diastereoselective fashion. This review provides an updated account on the recent advances and applications of OMR in the synthesis 5- and 6-membered monocyclic oxo-heterocycles published in the literature since 2013 to date.

Graphical abstract: The oxa-Michael reaction in the synthesis of 5- and 6-membered oxygen-containing heterocycles

Article information

Article type
Review Article
Submitted
26 okt 2020
Accepted
18 jan 2021
First published
19 jan 2021

Org. Chem. Front., 2021,8, 1329-1344

The oxa-Michael reaction in the synthesis of 5- and 6-membered oxygen-containing heterocycles

T. Ahmad and N. Ullah, Org. Chem. Front., 2021, 8, 1329 DOI: 10.1039/D0QO01312A

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