Journal
JOURNAL OF ORGANIC CHEMISTRY
Volume 88, Issue 21, Pages 15073-15084Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.joc.3c01525
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This study demonstrates an unprecedented synthesis method using p-TsOH and MsOH as catalysts to construct valuable compounds. The metal-free Brönsted acid-mediated approach is operationally simple, highly regioselective, atom economical, high yielding, sustainable, and catalytically efficient.
An unprecedented p-TsOH and MsOH-catalyzed construction of valuable isoindolo/pyrido/pyrrolo-quinolinediones and isoindolo-indolones is demonstrated through annulation reactions of cyclic anhydrides or o-formylbenzoates with o-alkynylanilines. The metal-free Bro.nsted acid-mediated new [5+1] and [4+1] fused-cyclization is an operationally simple, highly regioselective, atom economical, high yielding, sustainable, and catalytically efficient approach.
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