Pyridazine derivatives and related compounds, part 8: Synthesis of different heterocycles from 3-hydrazinopyridazine
作者:Ali Deeb、Mekky Hassaneen、Mahmoud Kotb
DOI:10.1002/hc.20110
日期:——
The reaction of 3-hydrazino-4,5,6-triphenylpyridazine 1 with phenylisothiocyanate in ethanol gave thiocarbamoylhydrazine 2 while in butanol gave triazolo[4,3-b]pyridazinethione 3. Reaction of 1 with ethyl chloroformate gave ethoxycar- bamoylhydrazinopyridazine 5 which upon heating it furnished triazolopyridazine 6. Also, the reaction of 1 with chloroacetylchloride gave triazolopyridazine 7. Reaction
3-肼基-4,5,6-三苯基哒嗪 1 与异硫氰酸苯酯在乙醇中反应得到硫代氨基甲酰肼 2,而在丁醇中得到三唑并[4,3-b]哒嗪硫酮 3。1 与氯甲酸乙酯反应得到乙氧基氨基甲酰肼基哒嗪 5加热得到三唑并哒嗪6。此外,1与氯乙酰氯反应得到三唑并哒嗪7。1与许多芳香醛、D-葡萄糖和丙酮酸反应得到相应的腙9,11。9a,b 的氧化环化得到三唑并[4,3-b]哒嗪 10a,b。另一方面,还报道了 1 与草酸二乙酯、乙酰乙酸乙酯、乙酰丙酮、氰乙酸乙酯、二乙酰和邻苯二甲酸酐的反应。© 2005 Wiley Periodicals, Inc. 16:278–284, 2005; 在线发表于 Wiley InterScience (www.interscience. wiley.com)。DOI 10.1002/hc.20110