Fan R, Wen H, Chen Z, Xia Y, Fang W. A General Protocol toward Synthesis of 3-Methylindoles Using Acenaphthoimidazolyidene-Ligated Oxazoline Palladacycle.
Org Lett 2024;
26:22-28. [PMID:
38127726 DOI:
10.1021/acs.orglett.3c03438]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
An efficient catalytic strategy toward the synthesis of N-substituted 3-methylindoles from inactive o-dihaloarenes and N-allylamines was developed by using a 1,3-bis(2,6-diisopropylphenyl)acenaphthoimidazol-2-ylidene (AnIPr)-ligated oxazoline palladacycle. It enabled a very broad substrate scope tolerating different functional groups, electronic properties, and steric bulkiness and afforded desired products in good to excellent yields. Importantly, it showed great potential to synthesize several bioactive compounds and key intermediates of natural products in high yields.
Collapse