Catalytic Reactions Promoted by Homogeneous Catalysts Attached to Polystyrene Matrices.

Abstract

Styrene-divinylbenzene resins have been functionalized with phosphine ligands and these phosphinated resins have been used to immobilize Rh(I), Ir(I), and Pd(O) catalysts. The selectivity of Rh(I)-catalyzed hydroformylations and the optical yields in styrene hydroformylations have been examined as a function of ligand loading and P/Rh ratios. The rates of Ir(I)-catalyzed hydrogenations of 1,5-cyclooctadienes and Pd(O)-catalyzed butadiene dimerization-methoxylations were studied. In all cases the resin-catalyzed reactions were compared to their homogeneously catalyzed analogs. All the results appear to be explained in terms of the influence of the resin matrix on metal-ligand equilibria which play important roles in the reaction mechanisms. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Feb 24, 1978
Accession Number
ADA050766

Entities

People

  • Akira Hirao
  • Charles U. Pittman Jr.
  • Quock Ng
  • Ronnie Hanes
  • William Honnick

Organizations

  • University of Alabama

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Alkanes
  • Alkenes
  • Catalysis
  • Chemical Reaction Properties
  • Chemical Reactions
  • Chemical Synthesis
  • Chemistry
  • Contracts
  • Dielectric Gases
  • Dielectric Polymers
  • Materials
  • Materials Science
  • Military Research
  • Organic Chemistry
  • Resins
  • Transition Metals
  • United States

Fields of Study

  • Chemistry

Readers

  • Organic Chemistry
  • Polymer Science and Technology
  • Reinforced Composite Materials