Tetrahedron Letters

Catalyst/ligand-free synthesis of benzimidazoles and quinazolinones from amidines via intramolecular transamination reaction

S Gupta, PK Agarwal, B Kundu

文献索引：Gupta, Sahaj; Agarwal, Piyush K.; Kundu, Bijoy Tetrahedron Letters, 2010 , vol. 51, # 14 p. 1887 - 1890

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被引用次数: 23

摘要

... Please enable JavaScript to use all the features on this page. Tetrahedron Letters. Volume 51, Issue 14, 7 April 2010, Pages 1887–1890. ... In this Letter, we report a simple and efficient method for the synthesis of benzimidazoles and quinazolinones from amidines without involving the use of catalysts and/or ligands for the C–N bond formation. ... Reagents and conditions: (i) K 2 CO 3 , DMSO, 110 °C, μW, 30 min; (ii) 10% Pd–C, HCOONH 4 , CH 3 COOH, 80 °C, 1 h. ...