Synthesis and structural characterization of zinc complexes supported by amino-benzotriazole phenoxide ligands: Efficient catalysts for ring-opening polymerization of ε-caprolactone and β-butyrolactone

Jia Ying Li, Chen Yu Li, Wan Ju Tai, Chia Her Lin*, Bao Tsan Ko

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)

Abstract

Two amino-benzotriazole phenol ligands, 2-(2H-benzotriazol-2-yl)-6- ((diethylamino)methyl)-4-alkyl-phenol (alkyl = CH3, C1DEABTP-H, and alkyl = C8H17, C8DEABTP-H) were prepared through the Mannich condensation of 4-alkyl-2-(2H-benzotriazol-2-yl)phenol with the mixtures of excess paraformaldehyde and diethylamine under reflux conditions. Zinc complexes supported by amino-benzotriazole phenoxide ligands (C1DEABTP - and C8DEABTP-) were synthesized and fully characterized. The reaction of ZnEt2 with DEABTP-H (1 equiv.) produces the tetra-coordinated dimeric zinc complexes [(μ- C1DEABTP)ZnEt]2 (1) and [(μ-C8DEABTP)ZnEt] 2 (2). Experimental results indicate that complex 1 catalyzes the ring-opening polymerization of ε-caprolactone and β-butyrolactone with good catalytic activities in a controlled character.

Original languageEnglish
Pages (from-to)1140-1144
Number of pages5
JournalInorganic Chemistry Communication
Volume14
Issue number7
DOIs
Publication statusPublished - 2011 Jul
Externally publishedYes

Keywords

  • β-Butyrolactone
  • ε-Caprolactone
  • Catalyst
  • N,O-bidentate
  • Ring-opening polymerization
  • Zinc complex

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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