Issue 14, 2025, Issue in Progress

Transition-metal-free regioselective synthesis of spiro-oxazolidines through [3 + 2] annulation reactions of azadienes with haloalcohols

Abstract

The transition-metal-free regioselective [3 + 2] annulation of azadienes with haloalcohols for the preparation of highly functionalized spiro-oxazolidines is experimentally simple and proceeds under mild conditions. The metal-free protocols have more significance than the metal-catalyzed ones when the toxicity associated with the metal catalyst is considered. This transformation features a broad substrate scope, good yields, and excellent regioselectivity. Moreover, large-scale synthesis and representative transformations of spiro-oxazolidines were carried out to provide additional evidence on the practicality of this approach.

Graphical abstract: Transition-metal-free regioselective synthesis of spiro-oxazolidines through [3 + 2] annulation reactions of azadienes with haloalcohols

Supplementary files

Article information

Article type
Paper
Submitted
27 Feb 2025
Accepted
14 Mar 2025
First published
04 Apr 2025
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2025,15, 10634-10638

Transition-metal-free regioselective synthesis of spiro-oxazolidines through [3 + 2] annulation reactions of azadienes with haloalcohols

A. T. Savekar, S. M. Vitnor, V. B. Karande and S. B. Waghmode, RSC Adv., 2025, 15, 10634 DOI: 10.1039/D5RA01423A

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. You can use material from this article in other publications, without requesting further permission from the RSC, provided that the correct acknowledgement is given and it is not used for commercial purposes.

To request permission to reproduce material from this article in a commercial publication, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party commercial publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements