Synthesis of 5-Hydroxycyclopent-2-enones from Allenyl Vinyl Ketones via an Interrupted Nazarov Cyclization. Organic Letters 2009, 11 (6) , 1229-1231. DOI: 10.1021/ol900029d. Haibing Deng, Xiaobao Yang ...

We report a novel asymmetric addition of vinyl group to ketones using vinylaluminum reagents catalyzed by in situ prepared Ti(OiPr)4 complexes of (S)-BINOL to afford diversified tertiary allylic ...