Issue 80, 2024

Substituent-dependent [4+2] or [2+2] cycloadditions of phenylallenyl phosphine oxides with arynes

Abstract

A [4+2] cycloaddition strategy to assemble phenanthren-9-yldiphenylphosphine oxides is reported. This reaction relies on the strategic use of readily available phenylallenyl phosphine oxides as dienes to participate in [4+2] cycloaddition with arynes. Notably, benzo[b][1,4]oxaphosphinin-4-iums can be controllably synthesized by simply tuning the substituents in the phosphine oxide unit through a [2+2] cycloaddition cascade.

Graphical abstract: Substituent-dependent [4+2] or [2+2] cycloadditions of phenylallenyl phosphine oxides with arynes

Supplementary files

Article information

Article type
Communication
Submitted
14 Jul 2024
Accepted
14 Sep 2024
First published
16 Sep 2024

Chem. Commun., 2024,60, 11343-11346

Substituent-dependent [4+2] or [2+2] cycloadditions of phenylallenyl phosphine oxides with arynes

Y. Qin, J. Zhang, C. Zhang and Q. Wang, Chem. Commun., 2024, 60, 11343 DOI: 10.1039/D4CC03507K

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