Issue 3, 2015

1,1-Alkenylboration of diarylphosphino-enynes: convenient synthetic entry to vicinal P/B Lewis pairs at extended conjugated π-frameworks

Abstract

Alkenylboranes R-CH[double bond, length as m-dash]CH-B(C6F5)2 undergo carbon–carbon coupling by means of 1,1-alkenylboration with diarylphosphino-enynes to give substituted conjugated hexatriene derivatives that bear a vicinal pair of B(C6F5)2 Lewis acid and PAr2 Lewis base functionalities at their central carbon portions. A series of six examples was prepared and all compounds were characterized by X-ray diffraction. Consecutive reactions of two selected examples were carried out.

Graphical abstract: 1,1-Alkenylboration of diarylphosphino-enynes: convenient synthetic entry to vicinal P/B Lewis pairs at extended conjugated π-frameworks

Supplementary files

Article information

Article type
Paper
Submitted
30 Jul 2014
Accepted
23 Oct 2014
First published
23 Oct 2014

Org. Biomol. Chem., 2015,13, 764-769

1,1-Alkenylboration of diarylphosphino-enynes: convenient synthetic entry to vicinal P/B Lewis pairs at extended conjugated π-frameworks

G. Chen, G. Kehr, C. G. Daniliuc and G. Erker, Org. Biomol. Chem., 2015, 13, 764 DOI: 10.1039/C4OB02134G

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