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Novel Synthetic Approach Toward C‐Substituted Piperazine Derivatives via C‐N Bonds Formation of α‐Bromoarylethanones and Ethanolamine
Author(s) -
Cao Gao,
Hu AiXi,
Xie YanLi,
Zhou Zhen
Publication year - 2013
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.1088
Subject(s) - piperazine , chemistry , ethanolamine , formic acid , mass spectrometry , single crystal , crystal structure , aryl , organic chemistry , combinatorial chemistry , medicinal chemistry , stereochemistry , crystallography , chromatography , alkyl
A new method for the synthesis of novel C‐substituted piperazine derivatives bearing aryl substituents on 2,6‐C positions has been developed by one‐pot three‐component sequential reaction of α‐bromoarylethanones with ethanolamine in the presence of formic acid. The structure of the novel compounds was established by nuclear magnetic resonance (NMR), mass spectrometry (MS), and elemental analysis. In addition, the crystal structure of 4e was determined by single X‐ray crystallography and a possible reaction mechanism was proposed.

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