Journal
ORGANIC & BIOMOLECULAR CHEMISTRY
Volume 18, Issue 25, Pages 4843-4847Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0ob00877j
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Funding
- National Natural Science Foundation of China [51878326, 21762030, 21625203, 21871126]
- China Scholarship Council [201908360088]
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A simple and practical method for the synthesis of phosphoryl-substituted indolo[2,1-a]isoquinolin-6(5H)-ones and benzimidazo[2,1-a]isoquinolin-6(5H)-ones through manganese(iii)-promoted tandem phosphinoylation/cyclization of 2-arylindoles or 2-arylbenzimidazoles with disubstituted phosphine oxides was developed. In this transformation, new C-P bond and C-C bond were constructed simultaneously under silver-free conditions, exhibiting a broad substrate scope. It was noted that not only diarylphosphine oxides but also dialkyl and arylalkyl-phosphine oxides were compatible with the conditions.
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