Synthesis of selectively formylated calixarene ethers

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Date
2002
Authors
Arora, Vandna
Chawla, H M
Santra, Anuradha
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Abstract
By careful choice of a catalyst (TiCl4 or SnCl4), temperature, reaction time and mole ratio of the substrate to dichloromethylmethylether, it has been possible to obtain new functionalized formylated calix[n]arenes in the cone or partial cone conformation. Optimized general reaction procedures for obtaining mono-, di-, tri- and tetraformylated derivatives of calix[4]arenes as exemplified by formylation of tetramethoxy-, tetrakis(2-ethoxyethoxy)-, bis(ethoxycarbonylmethoxy)- and bis(hexadecyloxy)-calix[4]-arenes have been reported.
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Keywords
selective, calix[4]arene, formylation
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