Dehydrative Reduction: A Highly Diastereoselective Synthesis of syn-Bisaryl(or Heteroaryl) Dihydrobenzoxathiins and Benzodioxane
Organic Letters2003Vol. 5(5), pp. 685–688
Citations Over TimeTop 12% of 2003 papers
Abstract
TFA/Et(3)SiH-mediated cyclization of thioketones 5 derived from the reaction of functionalized thiophenols (catechols) with bromo ketones gave syn 2,3-bisaryl(or heteroaryl) dihydrobenzoxathiins and benzodioxane 1 with total diastereoselectivity (>99:1), in excellent yields.
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