- Azines from one-pot reaction of thiosemicarbazones
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Thermolysis and/or microwave irradiation of thiosemicarbazones gave the corresponding isothiocyanates, which on addition of either activated nitriles or aldehydes furnished various types of azines. The mechanism was discussed. The structures of products were proved by MS, IR, NMR, and elemental analyses (Image presented).
- Aly, Ashraf A.,Hassan, Alaa A.,Brown, Alan B.,Ibrahim, Mahmoud A. A.,Abdal-Latif, El-Shimaa S. M.
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- Novel synthesis of unsymmetrical azines from semicarbazones and aldehydes
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A new synthesis of unsymmetrical azines utilizing semicarbazones and aldehyde is described.
- Zhongjiao,Weiguo,Weiqi,Jiajun
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- Oxidized multiwalled nanotubes as efficient carbocatalyst for the general synthesis of azines
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The carbocatalytic synthesis of azines (N-N linked diimines) by mild-oxidized multiwalled carbon nanotubes catalyst (oxMWNT) is presented. The material, just with a 5 %wt. loading, is able to carry out a smooth room-temperature metal-free condensation of
- Agnoli, Stefano,Alemán, José,Blanco, Matías,Fraile, Alberto,Valle-Amores, Miguel A.
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p. 174 - 183
(2022/02/02)
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- Metal-Free Synthesis of 1,3,4-Oxadiazoles from N′-(Arylmethyl)hydrazides or 1-(Arylmethyl)-2-(arylmethylene)hydrazines
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An efficient and versatile metal-free synthesis of 1,3,4-oxadiazoles from N′-(arylmethyl)hydrazides or 1-(arylmethyl)-2-(arylmethylene)hydrazines through oxidative dehydrogenation is reported. A range of 2,5-disubstituted 1,3,4-oxadiazoles were prepared by treating N′-(arylmethyl)hydrazides with (diacetoxyiodo)benzene in acetonitrile or by treating 1-(arylmethyl)-2-(arylmethylene)hydrazines with [bis(trifluoroacetoxy)iodo]benzene in methyl tert-butyl ether. Aldehyde N-acylhydrazones and aldazines were initially generated in situ as intermediates.
- Shang, Zhenhua,Chu, Qianqian,Tan, Sheng
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p. 1032 - 1040
(2015/03/30)
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