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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


Tautomerism in 2,2′-bipyridyl-3,3′-diol
✍ Venelin Enchev 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 500 KB

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

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## 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