Transition-Metal Complexes with Bidentate Ligands Spanning trans-Positions. I. The synthesis of 2,11-bis(diphenylphosphinomethyl)benzo[c]-phenanthrene,a ligand promoting the formation of square planar complexes |
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Authors: | N. J. DeStefano D. K. Johnson R. M. Lane L. M. Venanzi |
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Abstract: | The bidentate ligand 2,11-bis(diphenylphosphinomethyl)benzo[c]phenanthrene ( 1 ) was synthesized from 2,11-dimethyl-benzo[c]phenanthrene ( 3 ) via the corresponding bromomethyl derivative 9. 3 was obtained from the cyclization with boron trifluoride etherate of 1,1-di-(p-methylphenethyl)-epoxyethane ( 7 ), which was prepared from 1,5-di(p-tolyl)-pentan-3-one ( 6 ). |
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