Masal DP, Choudhury R, Singh A, Reddy DS. Ready Access to Densely Substituted Furans Using Tsuji-Wacker-Type Cyclization.
J Org Chem 2021;
87:556-568. [PMID:
34962781 DOI:
10.1021/acs.joc.1c02567]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A competent method for the construction of highly substituted furans catalyzed by Pd(II) and Cu(II) chloride has been developed. The method provides easy access to di-, tri-, and tetrasubstituted furans from corresponding diols with relatively mild conditions in a unified strategy. The developed method has been successfully tested with more than 25 substrates, which resulted in furans of multiple substitution patterns with up to 84% isolated yields.
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