The synthesis and characterization of new schiff bases: 4-[(Pyridin-4-ylmethylene) amino] phenylalkanoates

Sie Tiong Ha, Lay Khoon Ong, Yip Foo Win, Yasodha Sivasothy, Guan Yeow Yeap, Peng Lim Boey

Research output: Contribution to journalArticleResearchpeer-review

2 Citations (Scopus)

Abstract

Four new heterocyclic Schiff bases were synthesized from the reaction between 4-[(pyridin-4-ylmethylene)amino]phenol and fatty acids with even number alkyl chains ranging from twelve to eighteen carbons. Their structures were elucidated using spectroscopic techniques such as FT-IR, EIMS and NMR. Phase-transition temperatures and the thermal parameters were obtained from differential scanning calorimetry (DSC). The texture observation was carried out with a polarizing optical microscope (POM) over heating and cooling cycles. All of the title compounds exhibited direct isotropization process.

Original languageEnglish
Pages (from-to)1146-1151
Number of pages6
JournalAustralian Journal of Basic and Applied Sciences
Volume4
Issue number6
Publication statusPublished - Jun 2010
Externally publishedYes

Keywords

  • 4-[(pyridin-4-ylmethylene) amino] phenylalkanoate
  • Phase transition
  • Schiff bases
  • Synthesis

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