Silylium-Ion-Promoted Hydrosilylation of Aryl-Substituted Allenes: Interception by Cyclization of the Allyl-Cation Intermediate.
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DOI: 10.1021/acs.orglett.2c00011
Abstract: A trityl-cation-initiated, silylium-ion-promoted hydrosilylation of aryl-substituted allenes is reported. Depending on the hydrosilane-to-initiator ratio, the hydrosilylation can be intercepted by an intramolecular electrophilic aromatic substitution or a Nazarov electrocyclization of an allyl-cation intermediate in the… read more here.
Keywords: hydrosilylation; silylium ion; hydrosilylation aryl; cation ... See more keywords
Manganese-Catalyzed Asymmetric Hydrosilylation of Aryl Ketones
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DOI: 10.1021/acsomega.7b00713
Abstract: We disclose the synthesis of a series of manganese complexes of chiral iminopyridine oxazoline ligands and their application in the first manganese-catalyzed asymmetric ketone hydrosilylations. The most sterically hindered manganese catalyst bearing two CH(Ph)2 groups… read more here.
Keywords: catalyzed asymmetric; manganese catalyzed; aryl ketones; hydrosilylation aryl ... See more keywords