Hydroalkoxylation catalyzed by a gold(I) complex encapsulated in a supramolecular host |
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| Authors: | Wang Z Jane Brown Casey J Bergman Robert G Raymond Kenneth N Toste F Dean |
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| Institution: | Chemical Sciences Division, Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720, USA. |
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| Abstract: | Gold(I)-phosphine complexes are readily encapsulated by a tetrahedral supramolecular host (Ga(4)L(6)). We have investigated the catalytic activity of the resulting complexes for the intramolecular hydroalkoxylation of allenes. The catalytic activity of Me(3)PAuBr was increased 8-fold by encapsulation, as determined by initial rate kinetics, and we observed up to 67 catalytic turnovers by Me(3)PAu(+) encapsulated in Ga(4)L(6). |
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