Synthesis 2018; 50(18): 3696-3707
DOI: 10.1055/s-0037-1610195
paper
© Georg Thieme Verlag Stuttgart · New York

Synthesis of Functionalized 1,4-Dioxanes with an Additional (Hetero)Aliphatic Ring

Andriy V. Bondarenko
a   Enamine Ltd., Chervonotkatska Street 78, Kyiv 02094, Ukraine   URL: www.enamine.net
,
Andrey A. Tolmachev
a   Enamine Ltd., Chervonotkatska Street 78, Kyiv 02094, Ukraine   URL: www.enamine.net
b   National Taras Shevchenko University of Kyiv, Volodymyrska Street, 60, Kyiv 01601, Ukraine   Email: gregor@univ.kiev.ua
,
Bohdan V. Vashchenko
a   Enamine Ltd., Chervonotkatska Street 78, Kyiv 02094, Ukraine   URL: www.enamine.net
b   National Taras Shevchenko University of Kyiv, Volodymyrska Street, 60, Kyiv 01601, Ukraine   Email: gregor@univ.kiev.ua
,
a   Enamine Ltd., Chervonotkatska Street 78, Kyiv 02094, Ukraine   URL: www.enamine.net
b   National Taras Shevchenko University of Kyiv, Volodymyrska Street, 60, Kyiv 01601, Ukraine   Email: gregor@univ.kiev.ua
› Author Affiliations
The work was funded by Enamine Ltd.
Further Information

Publication History

Received: 04 April 2018

Accepted after revision: 30 May 2018

Publication Date:
20 July 2018 (online)


Abstract

An approach to the preparation of 2-mono-, 2,2- and 2,3-disubstituted 1,4-dioxane derivatives is described. The reaction sequence commences from readily available epoxides, in most cases prepared via the Corey–Chaikovsky reaction of the corresponding aldehydes and ketones. The key step of the method is epoxide ring opening with ethylene glycol monosodium salt, followed by further cyclization of the diols obtained. The utility of the approach was demonstrated by multigram preparation of novel functionalized 1,4-dioxanes bearing additional cycloalkane, piperidine or pyrrolidine rings, mostly spirocyclic compounds, which are advanced building blocks for medicinal chemistry.

Supporting Information