Synthesis of Heterocyclic‐Fused Furans and Dihydrofurans via (4+ 1)‐Annulation with Ylide: Exploration of Unique Reactivity Behavior of α‐Carbonyl Sulfoxonium …
European Journal of Organic Chemistry, 2022•Wiley Online Library
Abstract A (4+ 1)‐annulation of arylidene heterocyclic‐N‐fused imidazolones with α‐
carbonyl sulfoxonium ylides has been developed. The reaction enabled efficient access to a
range of N‐heterocycle‐fused furans, such as secondary hydroxyl and the structural parts of
drug/bioactive compounds. A unique triple‐role of α‐carbonyl sulfoxonium ylides and a
characteristic stereo‐electronic functional behavior of the arylidene N‐fused imidazolones
have been explored.
carbonyl sulfoxonium ylides has been developed. The reaction enabled efficient access to a
range of N‐heterocycle‐fused furans, such as secondary hydroxyl and the structural parts of
drug/bioactive compounds. A unique triple‐role of α‐carbonyl sulfoxonium ylides and a
characteristic stereo‐electronic functional behavior of the arylidene N‐fused imidazolones
have been explored.
Abstract
A (4+1)‐annulation of arylidene heterocyclic‐N‐fused imidazolones with α‐carbonyl sulfoxonium ylides has been developed. The reaction enabled efficient access to a range of N‐heterocycle‐fused furans, such as secondary hydroxyl and the structural parts of drug/bioactive compounds. A unique triple‐role of α‐carbonyl sulfoxonium ylides and a characteristic stereo‐electronic functional behavior of the arylidene N‐fused imidazolones have been explored.
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