Bromination of 2,2′-Bipyridyl.
✍ Scribed by A. B. Zdravkov; N. N. Khimich
- Publisher
- John Wiley and Sons
- Year
- 2007
- Weight
- 21 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0931-7597
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✦ Synopsis
Abstract
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📜 SIMILAR VOLUMES
Three stable tautomeric forms, dienol (DE), ketoenol (KE), and diketo (DK), of 22'bipyridyl-3,3'-diol BP(OH), were found in this study, using the semiempirical AM^ and MNDC-PM3 and ab initio (4-31~ basis set) methods. All calculations were carried out without any symmetry restrictions. There is a go
## Abstract Treatment of the benzyl and (trimethylsilylethoxymethyl) SEM protected 2,2′‐biimidazoles, **2a** and **2b**, with 2 equivalents of __N__‐bromosuccinimide (NBS) allows obtaining the 5,5′‐dibromo and 4,4′‐dibromo substituted biimidazoles, **3a** and **5b** respectively. The use of 4 equiv