Han AJ, Tan Q, He ZT. Palladium-Catalyzed Asymmetric
O-1,5-Addition with Oximes via Hydroximation of Unsaturated Esters.
Org Lett 2024;
26:89-93. [PMID:
38127266 DOI:
10.1021/acs.orglett.3c03687]
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Abstract
Different from electronically matched 1,4- and 1,6-additions, herein, we disclose an electronically mismatched 1,5-conjugate addition process with oximes as the nucleophiles. By this design, the oxime moieties are readily introduced to the γ-position of the electron-deficient substrates in good yields, excellent regioselectivities, and high enantioselectivities. The corresponding allyl oximes are also conveniently transformed into a series of valuable enantioenriched skeletons.
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