Issue 5, 2015

Reactions of osmapyridinium with terminal alkynes

Abstract

We have synthesized a new type of ten-membered osmacycles by reaction of osmapyridinium with HC[triple bond, length as m-dash]CCH(OH)R (R = Ph, Et). We propose that these reactions take place initially by coordination of the alkynes, [2 + 2] cycloaddition, subsequent 1,2-hydrogen migration and a final reductive elimination. The reactions with phenylacetylenes do not afford the corresponding derivatives but rather give η4-coordinated cyclopentadiene complexes, which are proposed to derive from a [4 + 2] cycloaddition process. Related reactions of the η4-coordinated cyclopentadiene complexes are also discussed.

Graphical abstract: Reactions of osmapyridinium with terminal alkynes

Supplementary files

Article information

Article type
Research Article
Submitted
12 Feb 2015
Accepted
25 Mar 2015
First published
26 Mar 2015

Org. Chem. Front., 2015,2, 560-568

Reactions of osmapyridinium with terminal alkynes

Y. Wei, X. Zhou, G. Hong, Z. Chen, H. Zhang and H. Xia, Org. Chem. Front., 2015, 2, 560 DOI: 10.1039/C5QO00052A

To request permission to reproduce material from this article, 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 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