Improved high yield syntheses of the larger pillar[6]arenes (P[6]) bearing different alkoxy substituents through cation templated syntheses using a series of small organic and organometallic cations is reported. Yields of P[6] up to 38% and P[6]/P[5] ratios as high as 5 : 1 were achieved.
![Graphical abstract: Cation templated improved synthesis of pillar[6]arenes](/en/Image/Get?imageInfo.ImageType=GA&imageInfo.ImageIdentifier.ManuscriptID=C6RA07164C&imageInfo.ImageIdentifier.Year=2016)
M. Da Pian, O. De Lucchi, G. Strukul, F. Fabris and A. Scarso, RSC Adv., 2016, 6, 48272 DOI: 10.1039/C6RA07164C
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