New synthesis of unsymmetrically-substituted 2,5-diarylpyrroles from homopropargyl sulfonamides
2014
Van Rossom, Wim | Matsushita, Yoshitaka | Ariga, Katsuhiko | Hill, Jonathan P.
Unsymmetrically-substituted 2,5-diarylpyrroles were prepared by 5-endo-dig cyclization with consecutive deprotection of homopropargyl sulfonamides. Stepwise elaboration of an aldehyde allows the introduction of a variety of functional aryl moieties at the pyrrole ring.
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