Access to Cyclopropyl-Fused Azacycles via a Palladium-Catalyzed Direct Alkenylation Strategy
作者:Carolyn L. Ladd、André B. Charette
DOI:10.1021/acs.orglett.6b02982
日期:2016.12.2
Palladium-catalyzed directalkenylation of cyclopropyl C–H bonds proceeds in high efficiency. This transformation provides access to novel cyclopropyl-fused azacycles. Ligand studies suggest that bisphosphine monoxide analogues of dppf and rac-BINAP are the active ligand species. Preliminary results support that both BozPhos and IPrMonophos ligands can achieve high enantioinduction for this novel direct alkenylation