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

doi:10.1016/j.inoche.2011.04.008

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 journal › Article › peer-review

25 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 language	English
Pages (from-to)	1140-1144
Number of pages	5
Journal	Inorganic Chemistry Communications
Volume	14
Issue number	7
DOIs	https://doi.org/10.1016/j.inoche.2011.04.008
Publication status	Published - 2011 Jul
Externally published	Yes

Keywords

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

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

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10.1016/j.inoche.2011.04.008

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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. / Li, Jia Ying; Li, Chen Yu; Tai, Wan Ju et al.
In: Inorganic Chemistry Communications, Vol. 14, No. 7, 07.2011, p. 1140-1144.

Research output: Contribution to journal › Article › peer-review

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title = "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",

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.",

keywords = "Catalyst, N,O-bidentate, Ring-opening polymerization, Zinc complex, β-Butyrolactone, ε-Caprolactone",

author = "Li, {Jia Ying} and Li, {Chen Yu} and Tai, {Wan Ju} and Lin, {Chia Her} and Ko, {Bao Tsan}",

note = "Funding Information: We gratefully acknowledge the financial support from the National Science Council, Taiwan ( NSC99-2113-M-033-007-MY2 and NSC99-2113-M-033-005-MY2 ). ",

year = "2011",

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doi = "10.1016/j.inoche.2011.04.008",

language = "English",

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T2 - Efficient catalysts for ring-opening polymerization of ε-caprolactone and β-butyrolactone

AU - Li, Jia Ying

AU - Li, Chen Yu

AU - Tai, Wan Ju

AU - Lin, Chia Her

AU - Ko, Bao Tsan

N1 - Funding Information: We gratefully acknowledge the financial support from the National Science Council, Taiwan ( NSC99-2113-M-033-007-MY2 and NSC99-2113-M-033-005-MY2 ).

PY - 2011/7

Y1 - 2011/7

N2 - 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.

AB - 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.

KW - Catalyst

KW - N,O-bidentate

KW - Ring-opening polymerization

KW - Zinc complex

KW - β-Butyrolactone

KW - ε-Caprolactone

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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

Abstract

Keywords

ASJC Scopus subject areas

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