## 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 20.0° have been analyzed quantitatively. Up to eleven low molecular weight compounds could be identified besides the major pr
Dediazoniations of Arenediazonium Ions in Homogeneous Solution. Part XIV. 15N-CIDNP. Investigation of the reactions of diazonium ions in weakly alkaline aqueous solutions
✍ Scribed by Eberhard-Ludwig Dreher; Paul Niederer; Anton Ricker; Wolfgang Schwarz; Heinrich Zollinger
- Publisher
- John Wiley and Sons
- Year
- 1981
- Tongue
- German
- Weight
- 869 KB
- Volume
- 64
- Category
- Article
- ISSN
- 0018-019X
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✦ Synopsis
Abstract
^15^N‐CIDNP. spectra recorded during the reaction of diazonium cations with OH^−^ in weakly alkaline aqueous solutions show that the dediazoniation is at least partially homolytic. The polarizations observed for the diazonium and trans‐diazotate ions can be explained by reaction proceeding via a cage involving diazenyl and diazotate radicals using Kaptein's rules and simple intensity considerations.
📜 SIMILAR VOLUMES
The kinetics of reactions of p-chlorobenzenediazonium ions in aqueous buffer solutions (pH 9.0-10.6) under N, (< 5 ppb of 0,) have been measured between 20 and 50°C. The formation of trans-diazotate is first-order with respect to the concentration of hydroxyl ions and to the equilibrium concentratio
## Abstract The kinetics of dediazoniation of __p__‐chlorobenzenediazonium tetrafluoroborate have been studied in buffer solutions in the pH‐range 9.0–10.0, ionic strength __I__ = 0.10, at 20.0° in glass and polytetrafluoroethylene vessels. The presence of oxygen (<5 ppb of O~2~, 60 to 100 ppb of O
## Abstract __p__‐Nitrobenzenediazonium tetrafluoroborate dissolved in dimethylsulfoxide (DMSO) at 50° forms __p__‐nitrophenol in 88–90% yield. The phenolic oxygen atom originates exclusively from the oxygen atom of DMSO as demonstrated by the use of ^18^O‐labelled DMSO. The first‐order rate of ded
## Abstract Benzenediazonium tetrafluoroborate in 2,2,2‐trifluoroethanol decomposes to give fluorobenzene and phenyl 2,2,2‐trifluoroethyl ether. In the presence of benzene, toluene, trifluoromethyl‐benzene or anisole, the respective biphenyl derivatives are formed in addition to fluorobenzene and t