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Scalable Synthesis of 18-Crown-6 Based Lariat Ethers and Their Evaluation as Catalysts in Ester Hydolyosis

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Date Issued:
2015
Summary:
The syntheses of various Lariat crown ethers including several not previously reported and their efficient purification are presented. The synthesis route brings together reactions from a variety of previous works leading to a robust and generalized approach to these C-pivot lariats. The main steps are condensation of functionalized diols with penta-ethylene glycol ditosylate in the presence of potassium as a templating cation. Purification of the final products was achieved without chromatography by forming crown ether complexes with potassium nitrate followed by their precipitation. The catalytic activity of these lariat ethers in the hydrolysis of carboxylic esters was explored.
Title: Scalable Synthesis of 18-Crown-6 Based Lariat Ethers and Their Evaluation as Catalysts in Ester Hydolyosis.
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Name(s): Suresh, Vallabh
Jana, Susovan
Lepore, Salvatore D.
Charles E. Schmidt College of Science
Type of Resource: text
Genre: Poster
Date Issued: 2015
Publisher: Florida Atlantic University Libraries: Digital Library
Physical Form: pdf
Extent: 1 p.
Language(s): English
Summary: The syntheses of various Lariat crown ethers including several not previously reported and their efficient purification are presented. The synthesis route brings together reactions from a variety of previous works leading to a robust and generalized approach to these C-pivot lariats. The main steps are condensation of functionalized diols with penta-ethylene glycol ditosylate in the presence of potassium as a templating cation. Purification of the final products was achieved without chromatography by forming crown ether complexes with potassium nitrate followed by their precipitation. The catalytic activity of these lariat ethers in the hydrolysis of carboxylic esters was explored.
Identifier: FA00005213 (IID)
Subject(s): College students --Research --United States.
Persistent Link to This Record: http://purl.flvc.org/fau/fd/FA00005213
Host Institution: FAU