Preparation of 2-trialkylsiloxy- substituted 1,3-dienes and their diels-alder/cross-coupling reactions

Org Lett. 2007 Apr 26;9(9):1623-6. doi: 10.1021/ol070089e. Epub 2007 Apr 5.

Abstract

[reaction: see text] 2-Triethylsiloxy-substituted 1,3-butadiene has been prepared in gram quantities from chloroprene via a simple synthetic procedure. Silatrane and catechol-substituted analogues of this main group element substituted diene were prepared by ligand exchange and characterized by X-ray crystallography in addition to standard spectroscopic techniques. Diels-Alder reactions of these dienes are reported as well as subsequent TBAF assisted/Pd-catalyzed Hiyama cross-coupling reactions of those Diels-Alder adducts.