Further studies on hydration of alkynes by the PtCl4-CO catalyst

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Under CO atmosphere, between 80 and 120 C, a glyme solution of PtCl{sub 4} forms a carbonyl compound that promotes hydration of internal as well as terminal alkynes to give aldehyde-free ketones. The catalytic process depends strongly on the electronic and steric nature of the substrates. Part of the carbonyl functions of the catalyst can be replaced by phosphine ligands. Chiral DIOP reacts with the PtCl{sub 4}-CO compound to give a catalyst that promotes partial kinetic resolution of a racemic alkyne. Replacement of part of the CO by polystyrene-bound diphenylphosphine enables to attach the catalyst to the polymeric support. Upon ... continued below

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24 pages

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Israelsohn, Osnat; Vollhardt, K. Peter C. & Blum, Jochanan January 18, 2002.

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Under CO atmosphere, between 80 and 120 C, a glyme solution of PtCl{sub 4} forms a carbonyl compound that promotes hydration of internal as well as terminal alkynes to give aldehyde-free ketones. The catalytic process depends strongly on the electronic and steric nature of the substrates. Part of the carbonyl functions of the catalyst can be replaced by phosphine ligands. Chiral DIOP reacts with the PtCl{sub 4}-CO compound to give a catalyst that promotes partial kinetic resolution of a racemic alkyne. Replacement of part of the CO by polystyrene-bound diphenylphosphine enables to attach the catalyst to the polymeric support. Upon entrapment of the platinum compound in a silica sol-gel matrix, it reacts as a partially recyclable catalyst. A reformulated mechanism for the PdCl{sub 4}-CO catalyzed hydration is suggested on the basis of the present study.

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24 pages

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OSTI as DE00837398

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  • Journal Name: Journal of Molecular Catalysis A; Journal Volume: 184; Journal Issue: 1-2; Other Information: Submitted to Journal of Molecular Catalysis A: Volume 184, No.1-2; Journal Publication Date: 06/17/2002

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  • Report No.: LBNL--49451
  • Grant Number: AC03-76SF00098
  • Office of Scientific & Technical Information Report Number: 837398
  • Archival Resource Key: ark:/67531/metadc787047

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Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • January 18, 2002

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  • Dec. 3, 2015, 9:30 a.m.

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  • July 26, 2016, 3:25 p.m.

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Israelsohn, Osnat; Vollhardt, K. Peter C. & Blum, Jochanan. Further studies on hydration of alkynes by the PtCl4-CO catalyst, article, January 18, 2002; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc787047/: accessed October 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.