Triflic Acid Promoted Transformations of Linear-Conjugated Enynones and their Reactions with Arenes. Synthesis of Dihydropyranones, Conjugated Dienones, and Indanes
Linear-conjugated enynones,1,5-diarylpent-4-en-2-yn-1-ones [Ar2?CH=CH?C≡C?C(=O)Ar1], have been cyclized into 2,6-diaryl-2,3-dihydropyran-4-ones in triflic acid TfOH (CF3SO3H). Reactions of these enynones with ar
Boyarskaya, Irina A.,Golovanov, Alexander A.,Khoroshilova, Olesya V.,Kruykova, Mariya A.,Vasilyev, Aleksander V.,Zalivatskaya, Anna S.
p. 2634 - 2649
(2021/06/25)
One-pot synthesis of conjugated (E)-enynones via two types of cross-coupling reaction
(Trimethylsilyl)ethynyl bromide can be easily transformed into conjugated (E)-enynones, whose skeleton consists of consecutive carbonyl, ethynyl, and (E)-ethenyl units, via a one-pot multicomponent Suzuki-type reaction-Sonogashira reaction sequence. Thus,