Ring Cleavage and Successive Aldol Reaction of 3-[(Trialkylsilyl)methyl]cyclobutanones
摘要:
3-[(Trialkylsilyl)methyl]cyclobutanones reacted with aldehydes by activation with titanium(IV) chloride to give acyclic beta,gamma-unsaturated beta'-hydroxyketones.
Ring Cleavage and Successive Aldol Reaction of 3-[(Trialkylsilyl)methyl]cyclobutanones
摘要:
3-[(Trialkylsilyl)methyl]cyclobutanones reacted with aldehydes by activation with titanium(IV) chloride to give acyclic beta,gamma-unsaturated beta'-hydroxyketones.
β′-Chloro and β′,γ′-unsaturated trichlorotitanium enolates, which were formed in situ by titanium(IV) chloride-mediated ring cleavage of 3,3-dialkylcyclobutanones and 3-[(trimethylsilyl)methyl]cyclobutanones, reacted with enones to give Michael adducts with keeping a labile β′-chloro or β′,γ′-unsaturated group.
3-[(Trialkylsilyl)methyl]cyclobutanones reacted with aldehydes by activation with titanium(IV) chloride to give acyclic beta,gamma-unsaturated beta'-hydroxyketones.