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Title: Synthesis of triazole-based and imidazole-based zinc catalysts

Patent ·
OSTI ID:1083060
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Various methods and structures of complexes and molecules are described herein related to a zinc-centered catalyst for removing carbon dioxide from atmospheric or aqueous environments. According to one embodiment, a method for creating a tris(triazolyl)pentaerythritol molecule includes contacting a pentaerythritol molecule with a propargyl halide molecule to create a trialkyne molecule, and contacting the trialkyne molecule with an azide molecule to create the tris(triazolyl)pentaerythritol molecule. In another embodiment, a method for creating a tris(imidazolyl)pentaerythritol molecule includes alkylating an imidazole 2-carbaldehyde molecule to create a monoalkylated aldehyde molecule, reducing the monoalkylated aldehyde molecule to create an alcohol molecule, converting the alcohol molecule to create an alkyl halide molecule using thionyl halide, and reacting the alkyl halide molecule with a pentaerythritol molecule to create a tris(imidazolyl)pentaerythritol molecule. In another embodiment, zinc is bound to the tris(triazolyl)pentaerythritol molecule to create a zinc-centered tris(triazolyl)pentaerythritol catalyst for removing carbon dioxide from atmospheric or aqueous environments.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC52-07NA27344
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
Patent Number(s):
8,394,351
Application Number:
12/787,356
OSTI ID:
1083060
Country of Publication:
United States
Language:
English

References (9)

Kinetic study of catalytic CO2 hydration by water-soluble model compound of carbonic anhydrase and anion inhibition effect on CO2 hydration journal April 2002
Advances in Zinc Enzyme Models by Small, Mononuclear Zinc (II) Complexes book January 1997
Polytriazoles as Copper(I)-Stabilizing Ligands in Catalysis journal August 2004
A Synthetically Simple, Click-Generated Cyclam-Based Zinc(II) Sensor journal December 2008
Peptidotriazoles on Solid Phase  [1,2,3]-Triazoles by Regiospecific Copper(I)-Catalyzed 1,3-Dipolar Cycloadditions of Terminal Alkynes to Azides journal May 2002
A functional model for carbonic anhydrase: thermodynamic and kinetic study of a tetraazacyclododecane complex of zinc(II) journal October 1995
Kinetics and mechanism of the hydration of carbon dioxide and dehydration of bicarbonate catalyzed by a zinc (II) complex of 1,5,9-triazacyclododecane as a model for carbonic anhydrase journal December 1993
One-Pot Synthesis of 1,4-Disubstituted 1,2,3-Triazoles from In Situ Generated Azides journal October 2004
Electrochemically Protected Copper(I)-Catalyzed Azide-Alkyne Cycloaddition journal June 2008

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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY