Dediazoniations of Arenediazonium Ions. Part XXI. Dediazoniation of Arenediazonium Ions Complexed with Crown Ethers
β Scribed by Hiroyuki Nakazumi; Ivanka Szele; Katsuhira Yoshida; Heinrich Zollinger
- Publisher
- John Wiley and Sons
- Year
- 1983
- Tongue
- German
- Weight
- 807 KB
- Volume
- 66
- Category
- Article
- ISSN
- 0018-019X
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β¦ Synopsis
In 1,2-dichloroethane. ") No clear maximum. b, In 1,2-dichloroethane containing crown ether.
π SIMILAR VOLUMES
The evaluation of the kinetics of dediazoniation of benzenediazonium tetrafluoroborate and p-chlorobenzenediazonium tetrafluoroborate in 1,2-dichloroethane at 50Β°C in the presence of 18-crown-6,
## Abstract In heterolytic dediazoniations arenediazonium salts form aryl cations. The reaction rates are relatively slow; they depend only to a small extent on the solvent. It is shown that the solvents in which the heterolytic dediazoniation mechanism is predominant have a low nucleophilicity, wh
## Abstract The products of decomposition of solutions of __p__βchlorobenzenediazonium tetrafluoroborate in aqueous buffer solutions (pH 9.0β10.3; ionic strength 0.1β0.5) at 20.0Β° have been analyzed quantitatively. Up to eleven low molecular weight compounds could be identified besides the major pr
## Abstract The mechanism of dediazoniation of arenediazonium tetrafluoroborates in 2,2,2βtrifluoroethanol (TFE) is strongly dependent on the concentration of added pyridine. The added base complexes with the diazonium ion and diverts it to a homolytic pathway. Complex formation is indicated by the