Accession Number:

ADA088888

Title:

Ionic Attachment as a Feasible Approach to Heterogenizing Anionic Solution Catalysts. The Carbonylation of Methanol,

Descriptive Note:

Corporate Author:

ILLINOIS UNIV AT URBANA SCHOOL OF CHEMICAL SCIENCES

Report Date:

1980-08-01

Pagination or Media Count:

20.0

Abstract:

Few definitive examples of ionically supported anionic transition metal complexes for use in catalysis have been reported, even though there are several advantages to be gained from such systems. To demonstrate the feasibility and usefulness of such materials in catalysis, we investigated the RhCO2I2- catalyzed carbonylation of methanol to acetic acid. The ionically supported RhCO2I2- species was found to be equal in catalytic activity to the homogeneous complex, and leaching of the catalyst could be eliminated by suitable choice of solvent and resinrhodium ratios. Additionally, we investigated the usefulness of a solid phase acid in catalyzing the formation of CH3I from NaI NaI by itself is inactive. We found this acid catalyst was active in this regard, and that the acidity was retained within the solid phase. These experiments suggest a general application of anion exchange resins as a mechanistic tool for detecting catalysis by anionic species in homogeneous processes. Author

Subject Categories:

  • Physical Chemistry
  • Polymer Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE