H₃PW₁₂O₄₀ catalyzed efficient synthesis of 4-substituted coumarins
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Title |
H₃PW₁₂O₄₀ catalyzed efficient synthesis of 4-substituted coumarins
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Creator |
Raju, B China
Babu, T Hari Rao, J Madhusudana |
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Subject |
Pechmann reaction
4-substituted coumarins Phenols β-ketoesters Phosphotungstic acid |
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Description |
120-123
Phosphotungstic acid is commercially available and environmentally benign catalyst to promote the Pechmann condensation of various phenols with β-Ketoesters afford 4-substituted coumarins 3a-g in very good yields. This method is practical and provides several advantages. |
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Date |
2009-01-30T11:26:59Z
2009-01-30T11:26:59Z 2009-01 |
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Type |
Article
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Identifier |
0376-4699
http://hdl.handle.net/123456789/2934 |
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Language |
en_US
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Publisher |
CSIR
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Source |
IJCB Vol.48B(1) [January 2009]
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