Catalytic Asymmetric Synthesis of Chiral Dihydrobenzofurans through a Formal [4+1] Annulation Reaction of Sulfur Ylides and In Situ Generated ortho‐Quinone Methides
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DOI: 10.1002/ejoc.201601186
Abstract: The first example of a catalytic asymmetric formal [4+1] annulation reaction between sulfur ylides and in situ generated ortho-quinone methides (o-QMs) is reported in this work. A C2-symmetric chiral urea was identified to be the… read more here.
Keywords: sulfur ylides; reaction sulfur; formal annulation; catalytic asymmetric ... See more keywords