Fu, Zhenqian; Sun, Hui; Chen, Shaojin; Tiwari, Bhoopendra; Li, Guohui; Robin Chi, Yonggui published the artcile< Controlled β-protonation and [4+2] cycloaddition of enals and chalcones via N-heterocyclic carbene/acid catalysis: toward substrate independent reaction control>, Recommanded Product: 3-(4-Bromophenyl)acrylaldehyde, the main research area is enol lactone preparation enal chalcone cycloaddition NHC catalyst.
A substrate-independent selective generation of enolates over homoenolate equivalent in NHC-catalyzed reactions of enals and chalcones is disclosed. Acid co-catalysts play vital roles in control of the reaction pathways, allowing for individual access to diverse products from identical substrates.
Chemical Communications (Cambridge, United Kingdom) published new progress about [4+2] Cycloaddition reaction. 3893-18-3 belongs to class bromides-buliding-blocks, and the molecular formula is C9H7BrO, Recommanded Product: 3-(4-Bromophenyl)acrylaldehyde.
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary