ISSN:
0009-2940
Keywords:
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Transition Metal Carbene Complexes, CXXXII. Synthesis of Novel Gold(1)- and Gold(III) Carbene ComplexesPentacarbonyl[(dimethylamino)phenylcarbene]-complexes of chromium(0) (1a), molybdenum(0) (1b), and tungsten(0) (1c) react with chloroauric acid to give chloro[(dimethylamino)phenylcarbene]-gold(I) (2) and trichloro[(dimethylamino)phenylcarbene]gold(III) (3), while the reaction of 1c with bromoauric acid yields only bromo[(dimethylamino)phenylcarbene]gold(I) (4). Tribromo-[(dimethylamino)phenylcarbene]gold(III) (5) is obtained either from 4 by oxidative addition of bromine or from 3 halogene substitution with boron tribromide. [(Dimethylamino)phenyl-carbene]triiodogold(III) (6) is prepared by further halogene substitution from 5 with boron triiodide; it is reduced with sodium thiosulfate to give [(dimethylamino)phenylcarbene]iodogold(I) (7).
Notes:
Pentacarbonyl[(dimethylamino)phenylcarben]-Komplexe von Chrom(0) (1a), Molybdän(0) (1b) und Wolfram(0) (1c) reagieren mit Tetrachlorogoldsäure zu Chloro[(dimethylamino)phenylcarben]-gold(I) (2) und Trichloro[(dimethylamino)phenylcarben]gold(III) (3). Mit Tetrabromogoldsäure reagiert 1c dagegen nur zu Bromo[(dimethylamino)phenylcarben]gold(I) (4). Tribromo[(dimethylamino)phenylcarben]gold(III) (5) erhält man entweder aus 4 durch oxidative Addition von Brom oder aus 3 durch Halogenaustausch mit Bortribromid. [(Dimethylamino)phenylcarben]-triiodogold(III) (6) läßt sich durch weiteren Halogenaustausch aus 5 mit Bortriiodid darstellen und kann mit Natriumthiosulfat zu [(Dimethylamino)phenylcarben]iodogold(I) (7) reduziert werden.
Additional Material:
2 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19831161110
