作者:Zh. V. Chirkova、M. V. Kabanova、S. I. Filimonov、A. V. Samet、G. A. Stashina、T. N. Sudzilovskaya
DOI:10.1007/s11172-018-2184-6
日期:2018.6
Chlorination of 1-hydroxyindole-5,6-dicarbonitriles and 1-hydroxypyrrolo[3,4-f]indole-5,7(1H,6H)-diones with N-chlorosuccinimide afforded previously unknown 3,3-dichloro-3Hindole 1-oxides instead of the expected 3-chloro-1-hydroxyindoles. The latter, however, were prepared in good yields by treatment of the above 3,3-dichloro-3H-indole 1-oxides with piperidine in ethanol. Reduction of 3,3-dichloro-5
1-羟基吲哚-5,6-二甲腈和1-羟基吡咯并[3,4-f]吲哚-5,7(1H,6H)-二酮与N-氯代琥珀酰亚胺的氯化得到以前未知的3,3-二氯-3-吲哚1-氧化物而不是预期的 3-氯-1-羟基吲哚。然而,后者是通过在乙醇中用哌啶处理上述 3,3-二氯-3H-吲哚 1-氧化物而以良好产率制备的。用 Zn 在 AcOH 中还原 3,3-二氯-5,6-二氰基-3H-吲哚 1-氧化物产生相应的 3-氯吲哚-5,6-二腈。