Lewis Base Promoted Intramolecular Acylcyanation of α-Substituted Activated Alkenes: Construction of Ketones Bearing β-Quaternary Carbon Centers
摘要:
A novel phosphine-promoted intramolecular acylcyanation of alpha-substituted activated alkenes has been developed, which provides a unique access to densely functionalized acyclic ketones bearing beta-quaternary carbon centers with a remarkable feature that both alpha- and beta-positions of activated alkene are functionalized.
Lewis Base Promoted Intramolecular Acylcyanation of α-Substituted Activated Alkenes: Construction of Ketones Bearing β-Quaternary Carbon Centers
摘要:
A novel phosphine-promoted intramolecular acylcyanation of alpha-substituted activated alkenes has been developed, which provides a unique access to densely functionalized acyclic ketones bearing beta-quaternary carbon centers with a remarkable feature that both alpha- and beta-positions of activated alkene are functionalized.
The first tertiary amine-catalyzed tandem cyanation-allyic alkylation (CAA) reaction of aldehydes, appropriate cyanide sources, and Morita-Baylis-Hillman (MBH) adducts has been developed, which provides a facile access to densely functionalized products containing O-substituted quaternary centers.
Lewis Base Promoted Intramolecular Acylcyanation of α-Substituted Activated Alkenes: Construction of Ketones Bearing β-Quaternary Carbon Centers
A novel phosphine-promoted intramolecular acylcyanation of alpha-substituted activated alkenes has been developed, which provides a unique access to densely functionalized acyclic ketones bearing beta-quaternary carbon centers with a remarkable feature that both alpha- and beta-positions of activated alkene are functionalized.