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Dediazoniations of Arenediazonium Ions. Part XXI. Dediazoniation of Arenediazonium Ions Complexed with Crown Ethers

✍ 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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✦ Synopsis


In 1,2-dichloroethane. ") No clear maximum. b, In 1,2-dichloroethane containing crown ether.


πŸ“œ SIMILAR VOLUMES


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## 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

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## Abstract The products of decomposition of solutions of __p__‐chlorobenzenediazonium tetrafluoroborate in aqueous buffer solutions (pH 9.0–10.3; ionic strength 0.1–0.5) at 20.0Β° have been analyzed quantitatively. Up to eleven low molecular weight compounds could be identified besides the major pr

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## Abstract The mechanism of dediazoniation of arenediazonium tetrafluoroborates in 2,2,2‐trifluoroethanol (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