A study of some isopropenyl-substituted dihydrofuro[1]benzopyranones
✍ Scribed by Seiji Yamaguchi; Akihito Saitoh; Yoshiyuki Kawase
- Book ID
- 112131196
- Publisher
- Journal of Heterocyclic Chemistry
- Year
- 1995
- Tongue
- English
- Weight
- 242 KB
- Volume
- 32
- Category
- Article
- ISSN
- 0022-152X
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📜 SIMILAR VOLUMES
H NMR spectra of six substituted phenols were recorded in different solvents. It was found that the intramolecular hydrogen bonding IAMHB strength between the hydroxyl proton and the adjacent carbonyl group increases with increasing steric crowding in the molecule, but becomes less stable toward ext
## Abstract Contrary to an earlier report, the metallation of 1,3‐bistrifluoromethylbenzene with n‐butyllithium is found to take place at the 4‐ and 2‐positions. Lithiation of 1,4‐bistrifluoromethylbenzene and subsequent carboxylation gives exclusively the 2‐carboxylic acid. Structures are assigned