The Rearrangement of 3,4-Disubstituted Coumarins to Coumarilic Acid Derivatives in Basic Media 1
β Scribed by Newman, Melvin S.; Dalton, Cecile K.
- Book ID
- 121222133
- Publisher
- American Chemical Society
- Year
- 1965
- Tongue
- English
- Weight
- 789 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0022-3263
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Equilibrium measurements at several temperatures between 293 K and 308 K have been performed on the tannase catalyzed reaction: 3,4,5-trihydroxybenzoic acid propyl ester(sln) + H2O(sln) = 3,4,5-trihydroxybenzoic acid(sln) + propan-1-ol(sln), where sln = aqueous phosphate buffer, aqueous acetate buff
## Abstract Reactions of electronβpoor Ξ±βhaloketones with (__N__βisocyanimino) triphenylphosphorane in the presence of aromatic carboxylic acids proceed smoothly at room temperature and in neutral conditions to afford disubstituted 1,3,4βoxadiazole derivatives in high yields. Β© 2010 Wiley Periodica