vacuum pyrolysis (FVP) of 2′-azidoacetophenone at 650 ˚C. Reaction of indoxyl with methoxymethylene Meldrum’s acid takes place at the 1-position, and FVP of the resulting derivative provides 1-hydroxy-9H-pyrrolo[1,2-a]indol-9-one (54%). FVP of the isomeric 2-methylene compound gives pyrano[3,2-b]indol-2(5H)-one (42%). gas-phase reactions - cyclisations - heterocycles - pyrolysis - ketenes
在650°C下通过2'-
叠氮基
苯乙酮的快速真空热解(FVP),可以得到75%的纯
吲哚酚。
吲哚基与甲氧基亚甲基梅德鲁姆酸的反应在1-位发生,所得衍
生物的FVP提供1-羟基-9 H-
吡咯并[1,2 - a ]
吲哚-9-一(54%)。异构体2-亚甲基化合物的FVP给出
吡喃并[3,2 - b ]
吲哚-2(5H)-一(42%)。 气相反应-环化-杂环-热解-
乙烯酮