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Cyclobutanes with a gem‐dimethyl group are common motifs in natural products. However, strategies for constructing enantioenriched gem‐dimethyl cyclobutanes are still underdeveloped. Herein, we report an enantioselective approach to synthesize a broad group of chiral 2,3‐disubstituted cyclobutanones through sequential 1,4‐conjugate addition/trapping/cross‐coupling of readily available cyclobutenones...
Cyclobutenones provide a straightforward four‐carbon ring platform for further structural elaborations in that every carbon atom of the ring could be potentially functionalized. We report here a nickel catalyzed enantioconvergent Negishi coupling of 4‐iodocyclobutenones with an array of aryl or alkenyl zinc reagents to access enantioenriched 4‐substituted cyclobutenones, from which a modular approach...
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