[(PPh3)Ag(CB11H6Y6)] (Y = H, Br): highly active, selective and recyclable Lewis acids for a hetero-Diels-Alder reaction

Reference:

Hague, C., Patmore, N. J., Frost, C. G., Mahon, M. F. and Weller, A. S., 2001. [(PPh3)Ag(CB11H6Y6)] (Y = H, Br): highly active, selective and recyclable Lewis acids for a hetero-Diels-Alder reaction. Chemical Communications, 2001 (21), pp. 2286-2287.

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Official URL:

http://dx.doi.org/10.1039/B106719B

Abstract

The complex [(PPh3)Ag(CB11H6Br6)] 1 is an effective and selective catalyst (0.1 mol% loading) for a hetero-Diels-Alder reaction, which shows a marked dependence on the presence of trace amounts of water, while addition of Ag[Y] [Y = CB11H12, CB11H6Br6, O3SCF3] to a phosphine functionalised support gives an efficient and recyclable Lewis acid catalyst for this transformation.

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