Iodotrimethylsilane-mediated additions of dienol silyl ethers to .alpha.,.beta.-unsaturated ketones

Trimethylsily1)oxy-substituted dienes react with 1 at low temperatures to afford annulated products. Disciplines Chemistry | Environmental Chemistry | Inorganic Chemistry | Organic Chemistry | Other Chemistry | Polymer Chemistry Comments Reprinted (adapted) with permission from The Journal of Organic Chemistry, 49(6); 1153-1154. Doi: 10.1021/jo00180a048. Copyright 1984 American Chemical Society. This article is available at Iowa State University Digital Repository: http://lib.dr.iastate.edu/chem_pubs/710 J. Org. Chem. 1984,49, 1153-1154 1153 2 and 3 for the formation of the 2-butyne. This system is complicated by the fact that 5 could convert to 4 by the pathway in Scheme I and that interconversion of the dioxalenylidene, 6, and the unsaturated lactone 12 is possible via the sequence in eq 6. The formation of 6 in a single