Chemistry letters

Silica-supported sodium hydrogen sulfate and Amberlyst-15: Two efficient heterogeneous catalysts for single-step synthesis of 4 (3H)-quinazolinones from anthranilic …

B Das, J Banerjee

文献索引：Das, Biswanath; Banerjee, Joydeep Chemistry Letters, 2004 , vol. 33, # 8 p. 960 - 961

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被引用次数: 48

摘要

The single step synthesis of 4 (3H)-quinazolinones has been carried out efficiently by coupling of the three components, anthranilic acid, ortho esters, and amines in the presence of silica-supported sodium hydrogen sulfate (NaHSO 4· SiO 2) or Amberlyst-15 as a