ARTICLE

Phosphoric Acid-Catalysed Double/Triple Pictet-Spengler Annulation/Oxidative Aromatization for Construction of C2- and C3-Symmetrical Quinazolinones

  • Zening Huang ,
  • Kaicheng Zuo ,
  • Tao Hu ,
  • Chengyang Zhang ,
  • Jinlong Zhang ,
  • Gaoxi jiang
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  • School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, Jiangsu 215009

Received date: 2025-10-14

  Revised date: 2025-10-29

  Online published: 2025-11-27

Supported by

Suzhou University of Science and Technology is gratefully acknowledged.

Abstract

A practical phosphoric acid-catalysed double/triple Pictet-Spengler annulation/oxidative aromatization has been developed to synthesize a series of C2- and C3-symmetrical quinazolinones from 2-aminobenzamides and aldehydes. The products can be easily transformed into various valuable aromatic diamines and triamines with different substitute side chains in gram-scale, which might be potential for exploration of new functional materials.

Cite this article

Zening Huang , Kaicheng Zuo , Tao Hu , Chengyang Zhang , Jinlong Zhang , Gaoxi jiang . Phosphoric Acid-Catalysed Double/Triple Pictet-Spengler Annulation/Oxidative Aromatization for Construction of C2- and C3-Symmetrical Quinazolinones[J]. Chinese Journal of Organic Chemistry, 0 : 8003 . DOI: 10.6023/cjoc202508003

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