Citric acid:An efficient and green catalyst for rapid one pot synthesis of quinoxaline derivatives a

• 作 者: Radhakrishnan Mahesh Arghya Kusum Dhar Tara Sasank T.V.N.V. Sappanimuthu Thirunavukkarasu Thangaraj Devadoss
• 机 构: Birla Institute of Technology & Science,Pilani,Rajasthan-333031,India,Orchid Chemicals and Pharmaceu
• 出 处: Chinese Chemical Letters
• 发表日期: 2011年04期
• 关键词: completed condensation citric ethanol substituent oxidizing diamine methanol nit

The condensation of o-phenylenediamines with 1,2-dicarbonyl compounds in the presence of citric acid afforded the corresponding quinoxaline derivatives in higher yields at room temperature in ethanol,and most of the reactions were completed in less than 1 min.

The condensation of o-phenylenediamines with 1,2-dicarbonyl compounds in the presence of citric acid afforded the corresponding quinoxaline derivatives in higher yields at room temperature in ethanol, and most of the reactions were completed in less than 1 min.