Regio- and Stereoselective Hydrophosphorylation of Ynamides for the Synthesis of β‑Aminovinylphosphine Oxides

Document Type

Article

Publication Date

4-24-2018

Publication Title

Organic Letters

Volume

20

First page number:

2778

Last page number:

2781

Abstract

A metal-free hydrophosphorylation of ynamides with diaryl phosphine oxides has been developed. A highly E-selective and β-regioselective hydrophosphorylation protocol has been established as a general method for the synthesis of diversely hydrophosphinylated products employing an in situ generated electrophilic phosphorus species. Deuterium incorporation experiments suggest that the amino phosphirenium intermediate undergoes a concerted ring-opening hydrolysis upon treatment with H2O to exclusively furnish β-aminovinylphosphine oxides.

Disciplines

Chemistry

Language

English

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