Several aldehyde and ketonephenylhydrazones were electrooxidized in MeOH. Electrooxidation in the presence of KI or tetraethylammonium p-toluenesulfonate as the supporting electrolyte afforded the corresponding methoxy(phenylazo)alkanes. whereas electrooxidation in the presence of KI, NaCN, and HOAc afforded the cyano(phenylazo)alkanes.
几种醛和酮苯腙在 MeOH 中被电氧化。在 KI 或对甲苯磺酸四乙基铵作为支持电解质的情况下进行电氧化,得到相应的甲氧基(苯偶氮)烷烃。而在 KI、NaCN 和 HOAc 存在下的电氧化得到氰基(苯偶氮)烷烃。
Electrooxidative Conversion of Aldehyde and Ketone Phenylhydrazones into the Methoxy(phenylazo)alkanes
作者:Mitsuhiro Okimoto、Yuji Nagata、Yukio Takahashi
DOI:10.1246/bcsj.76.1447
日期:2003.7
Several aldehyde and ketonephenylhydrazones were converted into the corresponding methoxy(phenylazo)alkane derivatives by electrochemical oxidation in MeOH.
通过在甲醇中电化学氧化将几种醛和酮苯腙转化为相应的甲氧基(苯基偶氮)烷烃衍生物。
C–O Coupling of Hydrazones with Diacetyliminoxyl Radical Leading to Azo Oxime Ethers—Novel Antifungal Agents
作者:Alexander S. Budnikov、Igor B. Krylov、Mikhail I. Shevchenko、Oleg O. Segida、Andrey V. Lastovko、Anna L. Alekseenko、Alexey I. Ilovaisky、Gennady I. Nikishin、Alexander O. Terent’ev
DOI:10.3390/molecules28237863
日期:——
Selective oxidative C-O coupling of hydrazones with diacetyliminoxyl is demonstrated, in which diacetyliminoxyl plays a dual role. It is an oxidant (hydrogen atom acceptor) and an O-partner for the oxidative coupling. The reaction is completed within 15-30 min at room temperature, is compatible with a broad scope of hydrazones, provides high yields in most cases, and requires no additives, which makes
ABSTRACT A simple, environmentally benign protocol for synthesis of hydrazones from carbonyl compounds and hydrazides has been developed in the presence of meglumine in aqueous-ethanol media at room temperature. The salient features of the present protocol are mild reaction conditions, short reaction time, high yields, operational simplicity, metal-free, applicability toward large-scale synthesis, and biodegradable