Abstmct: The reaction of 3,6-dimethary-3,6-dimethylcyclohea-l.4diene (I) with an ewess of dt@wtt silyl en01 ethers derived from ketones in the presence of zinc dichloride kads to the corresponding ketones regioselectively arylated at the (I position.
β¦ LIBER β¦
Reactivity of 3,6-dimethoxy-3, 6-dimethylcyclohexa-1, 4-diene: nuclear versus benzylic nucleophilic substitution
β Scribed by Francisco Alonso; Isidoro Barba; Miguel Yus
- Book ID
- 108372305
- Publisher
- Elsevier Science
- Year
- 1990
- Tongue
- French
- Weight
- 727 KB
- Volume
- 46
- Category
- Article
- ISSN
- 0040-4020
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## Abstract The acid catalyzed condensation of 4,5βdiaminopyrazoles and chalcones gave the hitherto unknown 1βbenzylβ2,4,6βtriphenylβ2,3βdihydropyrazolo[3,4β__b__][1,4]diazepines derivatives. The structure of all products was supported by ir, ^1^H and ^13^Cβnmr and mass spectra.