Citation: Juan Hong YU, Yu She YANG, Ru Yun JI. A Mild and Efficient Procedure for the Preparation of Chromone-2-carboxylates[J]. Chinese Chemical Letters, ;2006, 17(8): 1005-1008. shu

A Mild and Efficient Procedure for the Preparation of Chromone-2-carboxylates

State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, the Chinese Academy of Sciences, Shanghai 201203

Received Date: 13 February 2006

A mild and efficient procedure to build up various chromone-2-carboxylates was developed. Condensation of diverse 2-hydroxyacetophones with tetr-butyl oxalate in the presence of sodium ethoxide could be accomplished rapidly under mild condition. Cyclodehydration was carried out to achieve chromone-2-carboxylates in one-pot with impressive yield. Advantages over conventional methods with diethyl oxalate were observed in yield and reaction time.
- Chromone-2-carboxylates,
- tetr-butyl ethyl oxalate,
- diethyl oxalate
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