Syntheses of Pyrrolotropone Derivatives from Benzocycloheptene-5,6-dione Monoarylhydrazones. II. Syntheses of Benzo[5,6]cyclohept[l,2-<i>b</i>]-indole-6,11,12-triones
作者:Kunihide Fujimori、Kameji Yamane
DOI:10.1246/bcsj.47.1951
日期:1974.8
11,12-dihydrobenzo[5,6] cyclohept[1,2-b]indol-6-ones (Va–c) with sodium dichromate in acetic acid. Compound VIIIa was rearranged by means of a coned sodium hydroxide solution into a known benzocarbazole-1,4-quinone. The pyrrolotropolone derivative (VII) was also obtained through the ring closure of the 5-hydrazinotropolone derivative (VI).
苯并[5,6]环庚[1,2-b]吲哚-6,11,12-三酮(苯并吲哚并托苯醌)(VIIIa-c)是通过11,12-二氢苯并[5,6]环庚[1]的氧化制备的,2-b]indol-6-ones (Va–c) 与醋酸中的重铬酸钠。借助浓缩的氢氧化钠溶液将化合物 VIIIa 重排为已知的苯并咔唑-1,4-醌。吡咯并托泊酮衍生物(VII)也通过5-肼基托泊酮衍生物(VI)的闭环获得。