Knittl‐Frank C, Saridakis I, Stephens T, Gomes R, Neuhaus J, Misale A, Oost R, Oppedisano A, Maulide N. Gold-Catalyzed Cycloisomerization of Sulfur Ylides to Dihydrobenzothiepines.
Chemistry 2020;
26:10972-10975. [PMID:
32227380 PMCID:
PMC7496544 DOI:
10.1002/chem.202000622]
[Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 03/16/2020] [Indexed: 12/23/2022]
Abstract
The metal-promoted nucleophilic addition of sulfur ylides to π-systems is a well-established reactivity. However, the driving force of such transformations, elimination of a sulfide moiety, entails stoichiometric byproducts making them unfavorable in terms of atom economy. In this work, a new take on sulfur ylide chemistry is reported, an atom-economical gold(I)-catalyzed synthesis of dihydrobenzo[b]thiepines. The reaction proceeds under mild conditions at room temperature.
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