166517-16-4Relevant academic research and scientific papers
Additive and Medium Effects on Lewis Acid-Promoted Cationic ?-Cyclizations of Alkenyl- and Alkynylcyclopentane-1,3-diones
Balog, Aaron,Geib, Steven J.,Curran, Dennis, P.
, p. 345 - 352 (1995)
The effects of nucleophilic additives and Bronsted acids, and solvents on BF3*Et2O-promoted cationic ?-cyclizations of alkynyl- and alkenylcyclopentane-1,3-diones are reported.The rates and selectivities of alkynyl dione cyclizations were significantly ef
Alkynes as synthetic equivalents to stabilized wittig reagents: Intra- and intermolecular carbonyl olefinations catalyzed by Ag(I), BF3, and HBF4
Rhee, Jong Uk,Krische, Michael J.
, p. 2493 - 2495 (2007/10/03)
(Chemical Equation Presented) The first use of cationic silver (AgSbF 4) as a catalyst for intra- and intermolecular alkyne - carbonyl coupling to form conjugated enones is described, and a comparison to corresponding Bronsted acid (HBF4/
