Enantioselective [4 + 2] Cycloaddition of o‑Quinone Methides and Vinyl Sulfides: Indirect Access to Generally Substituted Chiral Chromanes

A catalytic asymmetric [4 + 2] cycloaddition of ortho-quinone methides (o-QMs) is described. With the readily available vinyl sulfides as the key 2π partner and a properly chosen chiral phosphoric acid catalyst, the reaction proceeded under mild conditions to form the corresponding adduct with high...

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Veröffentlicht in:	Organic letters 2017-05, Vol.19 (9), p.2334-2337
Hauptverfasser:	Wang, Zhaobin, Sun, Jianwei
Format:	Artikel
Sprache:	eng
Online-Zugang:	Volltext
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