ISSN:
0025-116X
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
Chelating thiolato-manganese complexes of 1,2-dimercaptoethane (DME), 3,4-dimercaptotoluene (DMT), cystein (Cys), β-mercaptoethyl alcohol (ME), β-mercaptoethylamine (MEA), and mercaptoacetic acid (MAA) showed high activity for the oxidative polymerization of 2,6-dimethylphenol (DMP) as heterogeneous catalysts. The complexes caused only C—O coupling to give poly[oxy(2,6-dimethyl-1,4-phenylene)] selectively. From the reaction in the absence of oxygen it was concluded that oxygen acts as electron-accepting ligand. The much higher activity of DMT complex, compared with that of DME complex, was considered to be due to the π-accepting character of the ligand. The MEA complex which showed especially strong spin-spin interaction in the ESR spectrum exhibited also high activity.
Additional Material:
2 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/macp.1981.021820112
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