Citation: Xue Yuan HU, Xue Sen FAN, Xin Ying ZHANG, Gui Rong QU, Yan Zhen LI. An Efficient and Green Synthesis of 5-Oxo-5,6,7,8-tetrahydro 4H-benzo-[b]-pyran Derivatives Promoted by InCl₃·4H₂O Under Microwave Irradiation[J]. Chinese Chemical Letters, ;2005, 16(7): 886-888. shu

An Efficient and Green Synthesis of 5-Oxo-5,6,7,8-tetrahydro 4H-benzo-[b]-pyran Derivatives Promoted by InCl₃·4H₂O Under Microwave Irradiation

1.
School of Chemical and Environmental Sciences, Henan Key Laboratory for Environmental Pollution Control, Henan Normal University, Xinxiang 453007;
2.
Chongqing University of Medical Sciences, Chongqing 400016

Received Date: 19 July 2004

Fund Project: This work was financially supported by the National Natural Science Foundation of China (No. 20372018) and the Science Foundation of Henan Normal University for Young Scholars (No. 0307032).

A rapid and facile preparation of benzo-[b]-pyran derivatives through condensation of chalcone and 5, 5-dimethyl-1,3-cyclohexandione under microwave irradiation in the presence of catalytic amount of InCI₃·4H₂O has been developed.with its high effciency,operational simplicity and environmental benignancy, this method may provide a useful alternative for the preparation of benzo-[b]-pyran derivatives.
- Pyran derivatives,
- indium trichloride,
- microwave irradiation
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