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Dibromido{2-[2-(piperidinium-1-yl)ethyl-imino-meth-yl]phenolato}zinc(II) monohydrate

Yi-Jun Wei1, Feng-Wu Wang, Qi-Yong Zhu

  • 1Department of Chemistry, Huainan Normal College, Huainan 232001, People's Republic of China.

Acta Crystallographica. Section E, Structure Reports Online
|January 5, 2011
PubMed

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The method to achieve α-brominated carboxylic acids using a mixture of phosphorus tribromide and bromine is known as the Hell–Volhard–Zelinski reaction. The reaction is catalyzed by phosphorus tribromide, which can be used directly or produced in situ from red phosphorus and bromine. The mechanism comprises PBr3 catalyzed conversion of acid to acid bromide and hydrogen bromide. The acid bromide enolizes to its enol form in the presence of HBr. The nucleophilic enol attacks the bromine molecule...
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Isomerism in Complexes
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
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