Citation: Abhay S. Zambare, Jaiprakash N. Sangshetti, Nagnnath D. Kokare, Devanand B. Shinde. Development of mild and efficient method for synthesis of substituted flavones using oxalic acid catalyst[J]. Chinese Chemical Letters, ;2009, 20(2): 171-174. doi: 10.1016/j.cclet.2008.10.042 shu

Development of mild and efficient method for synthesis of substituted flavones using oxalic acid catalyst

a Department of Chemical Technology, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad 431004, MS, India;
b New Drug Discovery, Wocckhardt Research Centre, Aurangabad 431210, MS, India

Received Date: 18 July 2008

Fund Project: The authors are grateful to Head Dr. D.B. Shinde, Department of Chemical Technology, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad 43100 (MS), India for providing the laboratory facility.

Oxalic acid has been used as a catalyst for intramolecular cyclisation of 2-hydroxychalcones to form flavones in good yields. The efficiency of the catalyst was proved with a variety of substrates ranging from electron-deficient to electron-rich aryl aldehydes and 2-hydroxychalcone.
- Aromatic aldehydes,
- 2-Hydroxychalcone,
- Oxalic acid,
- Flavones
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