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Novel representatives of 16-membered aminomethylphosphines with alkyl substituents at nitrogen and their gold(I) complexes |
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| Authors: | Musina E. I. Wittmann T. I. Lönnecke P. Hey-Hawkins E. Karasik A. A. Sinyashin O. G. |
| Affiliation: | 1.A.E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center, Russian Academy of Sciences, 8 ul. Arbuzova, 420088, Kazan, Russian Federation ;2.Institutе of Inorganic Chemistry, Leipzig University, Johannisallee 29, 04103, Leipzig, Germany ; |
| Abstract: | Novel 1,9-diaza-3,7,11,15-tetraphosphacyclohexadecanes with alkyl, arylalkyl, or heteroarylalkyl substituents at the endocyclic nitrogen atoms were synthesized by condensation of 1,3-bis(phenylphosphino)propane, formaldehyde, and primary amines. The reactions are stereoselective and result in the isomer with the RSSR configuration of the phosphorus atoms as the major product. The 16-membered tetrakis(phosphine) ligands form stable neutral tetranuclear complexes with gold(I). In these complexes, the 16-membered cyclic ligands retain their free-state conformations and the configuration of the chiral phosphorus atoms. |
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