Chemistry (Weinheim an der Bergstrasse, Germany)
Sc(OTf)3-Catalyzed Domino Michael Addition/Hemiketalization of Electron-Rich Phenols and 2-Cinnamoylpyridine 1-Oxides.
Ningning Li, Chengzhuo Wang, Wenlong Tong, Quanyu Ma, Ning Chen, Jiaxi Xu
Published: 202610.1002/chem.202503383
Abstract
Scandium triflate-catalyzed tandem reaction of electron-rich phenols and 2-cinnamoylpyridine 1-oxides is realized. This protocol enables the highly diastereoselective construction of 2,3-dihydrobenzopyrans (chromanes) via a domino Michael addition (F…
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