A Simple and Efficient Method for the Oxidation of Aryl Substituted Semicarbazide with NaNO<sub>2</sub>/NaHSO<sub>4</sub>·H<sub>2</sub>O/SiO<sub>2</sub>under Mild Conditions
作者:Xiao-Chuan Li、Yu-Lu Wang、Jin-Ye Wang
DOI:10.1002/jccs.200200062
日期:2002.6
In this paper, eighteen aryl substituted semicarbazide underwent efficient oxidation to aryl azo compounds using NaNO 2 /NaHSO 4 .H 2 O/SiO 2 under mild conditions with excellent yields.
Phase Transfer Catalyzed Dehydrogenation Synthesis of Azo Ureas From Aryl Substituted Semicarbazide
作者:Y. L. Wang、J. Y. Wang、J. P. Li、D. L. Ma
DOI:10.1080/00397919608003768
日期:1996.10
possible mechanism is suggested by a “Galvinoxyl” radical act on arylsubstituted semicarbazide formed azo compounds. Synthesis of bis (Substituted phenyl) Carbodiazone Compounds (ArN = NCON = NAr') have been reported1, As another part of our studies, 1, 4-di-Substituted azo Compounds (ArNHCON=NAr') Were Synthesized by the reaction of Substituted Semicarbazide Compounds With a phase transfer Catalyst-“Galvinoxyl”
Studies in the Pyrazole Series. VIII.<sup>1</sup> Aminolyses of Some 3,5-Dimethyl-1-acylguanylpyrazoles
作者:F. L. SCOTT
DOI:10.1021/jo01363a008
日期:1957.12.1
Clean synthesis of azo compounds using Magtrieve™ in the ionic liquid [bmim][Br]
作者:Hui Wan、Yanqing Peng
DOI:10.1007/s00706-008-0869-5
日期:2008.8
A series of azo compounds, N-aryl-2-phenyldiazenecarboxamides, and 4-substituted-1,2,4-triazoline-3,5-diones, were synthesized using Magtrieve (TM), a magnetically retrievable and recyclable oxidant, in the ionic liquid [bmim][Br] under neutral condition. This procedure has several advantages, such as greenness, mild reactions, simple manipulation, and reusability of reagent and solvent.
Li, Xiao-Chuan; Wang, Yu-Lu; Wang, Jin-Ye, Journal of Chemical Research - Part S, 2002, # 6, p. 284 - 285