Hachiya I, Nagoshi S, Shimizu M. Titanium Tetraiodide/Trimethylsilyl Iodide Synergistically Induced Cyclization of
N-(2-Cyanophenyl)benzamides into 2-Aryl-4-iodoquinazolines.
ACS OMEGA 2019;
4:10463-10473. [PMID:
31460142 PMCID:
PMC6648542 DOI:
10.1021/acsomega.9b01199]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Accepted: 06/05/2019] [Indexed: 06/10/2023]
Abstract
Synthesis of 2-aryl-4-iodoquinazolines is developed using titanium tetraiodide/trimethylsilyl iodide synergistically induced cyclization of N-(2-cyanophenyl)benzamides. The cyclization reactions proceeded to give the 2-aryl-4-iodoquinazolines in moderate to high yields. Remarkable synergetic effect of titanium tetraiodide and trimethylsilyl iodide was observed to promote the cyclization. The method was applied to the formal synthesis of a potent analgesic agent.
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