Ceric Ammonium Nitrate Catalyzed Efficient and Chemoselective Method for Protection and Deprotection of 4-Oxo-4H-1-benzopyran-3-carbaldehydes.
โ Scribed by S. S. Shindalkar; B. R. Madje; R. V. Hangarge; M. S. Shingare
- Publisher
- John Wiley and Sons
- Year
- 2006
- Weight
- 15 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0931-7597
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## Abstract magnified image The ethyl ester of 5,5โฒโmethyleneโbisโsalicyclic acid **3** was prepared by the esterification of 5,5โฒโmethyleneโbisโsalicylic acid **2**. The compound **3** on reacting with ethylacetoacetate yields 6,6โฒโmethylenebisโ(3โacetylโ4โhydroxycoumarin) **4**. The compound **4
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