Sulfonyl esters 3. The formation of sulfone-sulfonates in the reactions of aryl methanesulfonates with sodium hydride
Canadian Journal of Chemistry1991Vol. 69(12), pp. 2127–2135
J. Clayton Baum, Kathleen A. Durkin, Laura Precedo, Stacy Brian O'blenes, John Edward Goehl, Richard Francis Langler, Gerald Kendall MacCormack, L. L. SMITH
Abstract
Sodium hydride reductions of aryl methanesulfonates afford dimeric sulfone-sulfonate esters as well as products arising from SO bond rupture. SO bond rupture becomes more competitive as the LUMO energy of the sulfonate ester declines. Exploration of the chemistry of a sulfone-sulfonate ester revealed a complex novel reaction that resulted in the formation of, inter alia, a dichloromethanesulfonate ester and a trichloromethanesulfonate ester. The first successful approaches to the synthesis of the heretofore unknown trichloromethanesulfonates and dichloromethanesulfonates are reported. Key words: sodium hydride reductions, sulfenes, sulfone-sulfonate esters
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