A PCN ligand system. Exclusive C-C activation with rhodium(I) and C-H activation with platinum(II)

Mark Gandelman, Arkadi Vigalok, Linda J W Shimon, David Milstein

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Abstract

Reaction of the new aromatic aminophosphine ligand 1-((diethylamino)methyl)-3-((di-tertbutylphosphino)methyl)-2,4,6- trimethylbenzene (4) with [Rh(COE)2Cl]2 (COE = cyclooctene) or with [Rh(ethylene)2Cl]2 at room temperature results in selective carbon-carbon bond activation, yielding the complex ClRh(CH3)[C6H(CH3)2(CH 2N(C2H5)2)(CH 2P(t-Bu)2)] (5). No competing C-H activation was observed during the course of the reaction. When 4 was reacted with (COD)PtCl2 (COD = cyclooctadiene), selective C-H activation of the methyl group situated between the phosphine and amine groups took place, with concomitant intramolecular H transfer to the amine ligand, resulting in the zwitterionic Pt(II) complex Cl2PtCH2(C6H(CH3) 2(CH2NH(C2H5)2(CH 2P(t-Bu)2) (11).

Original languageEnglish
Pages (from-to)3981-3986
Number of pages6
JournalOrganometallics
Volume16
Issue number18
Publication statusPublished - Sep 2 1997

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Pregnenolone Carbonitrile
Rhodium
Platinum
rhodium
phosphine
platinum
crack opening displacement
Chemical activation
activation
methylidyne
Ligands
ligands
Amines
amines
Carbon
carbon
phosphines
ethylene
room temperature
Temperature

ASJC Scopus subject areas

  • Inorganic Chemistry
  • Organic Chemistry

Cite this

A PCN ligand system. Exclusive C-C activation with rhodium(I) and C-H activation with platinum(II). / Gandelman, Mark; Vigalok, Arkadi; Shimon, Linda J W; Milstein, David.

In: Organometallics, Vol. 16, No. 18, 02.09.1997, p. 3981-3986.

Research output: Contribution to journalArticle

Gandelman, Mark ; Vigalok, Arkadi ; Shimon, Linda J W ; Milstein, David. / A PCN ligand system. Exclusive C-C activation with rhodium(I) and C-H activation with platinum(II). In: Organometallics. 1997 ; Vol. 16, No. 18. pp. 3981-3986.
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