The synthesis of platinum complexes of cyclic phosphines and bisphosphines

György Keglevich, Péter Bagi, Erika Bálint, Tamás Körtvélyesi

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Abstract

Novel platinum complexes incorporating phosphine ligands have been developed by us. On the one hand, platinum complexes of PtL2Cl2 type were synthesized, where L represents a 3-phospholene, phospholane, 1,2,3,6-tetrahydrophosphinine or 1,4-dihydrophosphinine moiety in differently substituted forms. In a few cases, the P-ligands were used in an optically active form. In the second group, 3-diphenylphosphinosubstituted P-heterocycles, such as 3-Ph2P-1-phenylphospholane, 3-Ph2P-1-phenyl-1,2,3,6-tetrahydrophosphinine and 3-Ph2P-1-phenyl-1,2,3,4,5,6-hexahydrophosphinine bisphosphines were synthesized to make available the corresponding cis chelate (ring) platinum complexes. Finally, bis(diphenylphospinomethyl)amines were utilized in the synthesis of other kind of ring platinum complexes. In the above cases, the phosphines and diphosphines were obtained from the corresponding phosphine oxide and bis(phosphine oxide) precursors after (double) deoxygenation by silanes. The cyclic bis(phosphine oxides) were obtained by the phospha-Michael reaction, while the bis(phosphinoxidomethyl)amines by the double Kabachnik-Fields (phospha-Mannich) reaction. The new platinum complexes are potential catalysts in homogenous catalytic processes. Five platinum complexes were calculated by DFT and semiempirical (PM6-DH2) methods.

Original languageEnglish
Title of host publicationPlatinum
Subtitle of host publicationCompounds, Production and Applications
PublisherNova Science Publishers, Inc.
Pages83-101
Number of pages19
ISBN (Print)9781622579396
Publication statusPublished - Jan 1 2013

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ASJC Scopus subject areas

  • Chemical Engineering(all)

Cite this

Keglevich, G., Bagi, P., Bálint, E., & Körtvélyesi, T. (2013). The synthesis of platinum complexes of cyclic phosphines and bisphosphines. In Platinum: Compounds, Production and Applications (pp. 83-101). Nova Science Publishers, Inc..