β-(2-Benzofuryl)enamines in the Synthesis of Derivatives of Dibenzofuran and Benzofuro[3,2-c]pyridine.
✍ Scribed by T. I. Mukhanova; L. M. Alekseeva; V. G. Granik
- Publisher
- John Wiley and Sons
- Year
- 2003
- Weight
- 114 KB
- Volume
- 34
- Category
- Article
- ISSN
- 0931-7597
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## Abstract Chlorination of the __N__‐oxides of furo[2,3‐__b__]‐ 1a, ‐[2,3‐__c__]‐ 1b and ‐[3,2‐c]pyridine 1c with phosphorus oxychloride afforded compounds substituted normally at the α‐ or λ‐position to the ring nitrogen, 2a, 2′a, 2b, 2c, 2′c and 2′c, and in addition, in the case of 1b, compounds
## Abstract Cyanation of furo[2,3‐__b__]‐, ‐[2,3‐__c__]‐ and ‐[3,2‐__c__]pyridine __N__‐oxides 1a, 1b and 1c by the Reissert‐Henze method, reaction with benzoyl chloride and trimethylsilyl cyanide in dichloromethane and the reaction with trimethylsilyl cyanide and triethylamine in acetonitrile affo