The first successful use of the PR2NR′2 (1,5-R′-3,7-R-1,5-diaza-3,7-diphosphacyclooctane) ligand family toward an organic synthesis is described. The precatalysts [Ru(Cp)(PR2NBn2)(MeCN)]PF6 are active toward cyclization of 2-ethynylbenzyl alcohol at low catalyst loading and mild temperatures. Catalyst performance however is limited by both low conscription and by competitive deactivation.
J. M. Stubbs, J.-P. J. Bow, R. J. Hazlehurst and J. M. Blacquiere, Dalton Trans., 2016, 45, 17100 DOI: 10.1039/C6DT03694E
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