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Palladium‐Catalyzed Intramolecular Sulfonamidation/Oxidation of Imines: Access to Multifunctional Benzimidazoles
Author(s) -
Fu Shaomin,
Jiang Huanfeng,
Deng Yuanfu,
Zeng Wei
Publication year - 2011
Publication title -
advanced synthesis and catalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.541
H-Index - 155
eISSN - 1615-4169
pISSN - 1615-4150
DOI - 10.1002/adsc.201100370
Subject(s) - chemistry , intramolecular force , palladium , substituent , aryl , benzimidazole , potassium carbonate , catalysis , benzene , medicinal chemistry , alkyl , organic chemistry , combinatorial chemistry
O ‐Sulfonamidophenylimines undergo intramolecular sulfonamidation/oxidation to produce 1,2‐disubstituted benzimidazoles upon treatment with palladium(II) chloride/(diacetoxyiodo)benzene and potassium carbonate at room temperature. The substituent scope at the 2‐position of the benzimidazole can be extended to alkyl, aryl, alkenyl, acyl, and ester functional groups under mild conditions.