126855-53-6Relevant articles and documents
Br?nsted Acid Promoted Cyclization of Cross-Conjugated Enynones into Dihydropyran-4-ones
Saulnier, Steve,Lozovskiy, Stanislav V.,Golovanov, Alexander A.,Ivanov, Alexander Yu.,Vasilyev, Aleksander V.
, p. 3635 - 3645 (2017)
In triflic acid or sulfuric acid, diaryl-substituted cross-conjugated enynones undergo addition of the acid to the carbon–carbon triple bond to afford the corresponding vinyl triflates or sulfates. The vinyl triflates are stable under aqueous workup, wher