Water-soluble organometallic compounds. 2. Catalytic hydrogenation of aldehydes and olefins by new water-soluble 1,3,5-triaza-7-phosphaadamantane complexes of ruthenium and rhodium

Donald J. Darensbourg, Ferenc Joo, Michael Kannisto, A. Kathó, Joseph H. Reibenspies

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133 Citations (Scopus)

Abstract

Water-soluble phosphine complexes of ruthenium(II) and rhodium(I) have been prepared by the reduction of RuCl3 and RhCl3 in ethanol in the presence of the air-stable phosphine 1,3,5-triaza-7-phosphaadamantane (1). The complex RuCl2(PTA)4 (2a) and its protonated analog RuCl2(PTA)4·2HCl (2b) have been characterized by X-ray crystallography. Similarly, the cis-bis-(phosphine) complex RhCl(PTA)2·2HCl, derived from the protonation of RhCl(PTA)3 by HCl, has been characterized by X-ray crystallography. The water-soluble ruthenium phosphine derivative 2a is catalytically quite active for the conversion of unsaturated aldehydes to unsaturated alcohols using a biphasic aqueous/organic medium with formate as the source of hydrogen. By way of contrast, under similar conditions RhCl(PTA)3 is a very active catalyst for olefin hydrogenation.

Original languageEnglish
Pages (from-to)1990-1993
Number of pages4
JournalOrganometallics
Volume11
Issue number6
Publication statusPublished - 1992

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phosphine
Organometallic Compounds
Rhodium
organometallic compounds
Ruthenium
Alkenes
rhodium
aldehydes
Aldehydes
phosphines
ruthenium
alkenes
Hydrogenation
hydrogenation
analogs
formic acid
Water
X ray crystallography
water
crystallography

ASJC Scopus subject areas

  • Inorganic Chemistry
  • Organic Chemistry

Cite this

Water-soluble organometallic compounds. 2. Catalytic hydrogenation of aldehydes and olefins by new water-soluble 1,3,5-triaza-7-phosphaadamantane complexes of ruthenium and rhodium. / Darensbourg, Donald J.; Joo, Ferenc; Kannisto, Michael; Kathó, A.; Reibenspies, Joseph H.

In: Organometallics, Vol. 11, No. 6, 1992, p. 1990-1993.

Research output: Contribution to journalArticle

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AU - Kathó, A.

AU - Reibenspies, Joseph H.

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N2 - Water-soluble phosphine complexes of ruthenium(II) and rhodium(I) have been prepared by the reduction of RuCl3 and RhCl3 in ethanol in the presence of the air-stable phosphine 1,3,5-triaza-7-phosphaadamantane (1). The complex RuCl2(PTA)4 (2a) and its protonated analog RuCl2(PTA)4·2HCl (2b) have been characterized by X-ray crystallography. Similarly, the cis-bis-(phosphine) complex RhCl(PTA)2·2HCl, derived from the protonation of RhCl(PTA)3 by HCl, has been characterized by X-ray crystallography. The water-soluble ruthenium phosphine derivative 2a is catalytically quite active for the conversion of unsaturated aldehydes to unsaturated alcohols using a biphasic aqueous/organic medium with formate as the source of hydrogen. By way of contrast, under similar conditions RhCl(PTA)3 is a very active catalyst for olefin hydrogenation.

AB - Water-soluble phosphine complexes of ruthenium(II) and rhodium(I) have been prepared by the reduction of RuCl3 and RhCl3 in ethanol in the presence of the air-stable phosphine 1,3,5-triaza-7-phosphaadamantane (1). The complex RuCl2(PTA)4 (2a) and its protonated analog RuCl2(PTA)4·2HCl (2b) have been characterized by X-ray crystallography. Similarly, the cis-bis-(phosphine) complex RhCl(PTA)2·2HCl, derived from the protonation of RhCl(PTA)3 by HCl, has been characterized by X-ray crystallography. The water-soluble ruthenium phosphine derivative 2a is catalytically quite active for the conversion of unsaturated aldehydes to unsaturated alcohols using a biphasic aqueous/organic medium with formate as the source of hydrogen. By way of contrast, under similar conditions RhCl(PTA)3 is a very active catalyst for olefin hydrogenation.

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