Role of polar solvents for the synthesis of pillar[6]arenes?
RSC Advances Pub Date: 2015-12-01 DOI: 10.1039/C5RA19569A
Abstract
An efficient procedure for the synthesis of pillar[6]arenes has been developed. The procedure involves the condensation of 1,4-dialkoxybenzenes and paraformaldehyde in the presence of a catalytic amount of H2SO4 or BF3·OEt2 in polar solvent media (acetonitrile, ethyl alcohol, acetone etc.). In all cases the interaction afforded pillar[6]arenes in high yields.
![Graphical abstract: Role of polar solvents for the synthesis of pillar[6]arenes](http://scimg.chem960.com/usr/1/C5RA19569A.jpg)
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Journal Name：RSC Advances
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