β-Acyloxysulfonyl Tethers for Intramolecular Diels−Alder Cycloaddition Reactions
作者:Nataliya Chumachenko、Paul Sampson、Allen D. Hunter、Matthias Zeller
DOI:10.1021/ol050930t
日期:2005.7.1
[reaction: see text]. beta-Hydroxy sulfone-based tethers were employed for the first time to achieve thermally mediated intramolecularDiels-Alder cycloaddition. The reactions proceeded with complete regioselectivity and high (10/1) to complete endo/exo-selectivity and resulted in the preferential formation of one of the two possible endo-cycloadducts. The yields and stereoselectivities were proportional