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苯并环丁二酮的热解法合成
Synthesis of Benzocyclobutenediones by Flash Vaccum Pyrolysis
【摘要】 报道了闪式真空热解法 (FlashVacuumPyrolysis)合成取代的苯并环丁二酮。由取代苯酐经NaBH4 还原得取代的羟基苯酞 ,其三氟乙酸酯在 50 0~ 550℃及 1 3 3~ 1 3 3 3Pa下经石英管热解 ,得相应的取代苯并环丁二酮 ,产率中等
【Abstract】 Several substituted benzocyclobutenediones were prepared via flash vacuum pyrolysis. Substituted phthalide was treated with trifluoroacetic anhydride. The trifluoroacetate were then pyrolysed at 500~550℃/13 3~133 3Pa. The benzocyclobutenediones were obtained in multi\|grams scale with fair yields.
- 【文献出处】 化学通报 ,Chemistry , 编辑部邮箱 ,2001年07期
- 【分类号】O625
- 【下载频次】89