Synthesis of 1-alkoxy-1,2,3,4-tetra-hydrocarbazoles by mercury(II) mediated heterocyclization of 2-cyclohex-2′-enyl-<i>N</i>-alkylanilines
作者:K. C. Majumdar、U. Das
DOI:10.1139/v96-175
日期:1996.8.1
high yields by the mercury(II) mediated heterocyclization of 2-cyclohex-2′-enyl-N-alkylanilines 2(a–g), which in turn were obtained by the acid-catalyzed amino Claisen rearrangement of 3-N-alkylanilinocyclohexenes 1(a–g). Additional supporting evidence for the structure of product 3 was obtained from chemical transformations. Key words: 1-alkoxy tetrahydrocarbazole, mercury(II) mediated heterocyclization
标题化合物 3(a-i) 是通过汞 (II) 介导的 2-环己-2'-烯基-N-烷基苯胺 2(a-g) 的杂环化以高产率合成的,而后者又是通过酸获得-催化3-N-烷基苯胺基环己烯1(a-g)的氨基克莱森重排。从化学转化中获得了产品 3 结构的其他支持证据。关键词:1-烷氧基四氢咔唑,汞(II)介导的杂环化,氨基克莱森重排,3-N-甲基苯胺基环己烯。
<i>N</i>-Iodosuccinimide An effective reagent for regioselective heterocyclization of <i>o</i>-cyclohex-2′-enylanilines for the synthesis of hexahydrocarbazoles
作者:K C Majumdar、U K Kundu、U Das、N K Jana、B Roy
DOI:10.1139/v04-162
日期:2005.1.1
A number of carbazoles are synthesized in good yields by the N-iodosuccinimide mediated heterocyclization of o-cyclohex-2′-enylanilines in acetonitrile at 10 °C for 45 min followed by heating with palladiumcharcoal (10%) in benzene (80 °C) for 1820 h.Key words: N-iodosuccinimide, hexahydrocarbazole, heterocyclization, carbazole, Claisen rearrangement.
Synthesis of Carbazoles from<i>O</i>-Cyclohex-2-enyl-anilines.<sup>#</sup>
作者:K. C. Majumdar、U. Das、A. K. Kundu
DOI:10.1080/00397919808006863
日期:1998.5
Several carbazoles (4a-f) have been synthesised from o-cyclohex-2-enylanilines by treatment with pyridine hydrotribromide in methylene chloride at 0-5 degrees C for 2 h followed by refluxing with Pd-C in diphenyl ether for 1 h.
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作者:R. R. Gataullin、F. F. Minnigulov、T. V. Khakimova、A. A. Fatykhov、L. V. Spirikhin、I. B. Abdrakhmanov
DOI:10.1023/a:1020925202293
日期:——
The reactions of 2-(cyclohex-2-enyl)-4,5-difluoroaniline or N-methyl-2-(cyclohex-2-enyl)aniline with I-2 in CCl4 in the presence of NaHCO3 give 1-iodo-1,2,3,4,4a,9a-hexa- hydrocarbazoles, which isomerize in MeCN into the corresponding 3-iodo-2,4-propano-1,2,3,4-tetrahydroquinolines in quantitative yields.
JOLIDON S.; HANSEN H.-J., CHIMIA, 1979, 33, NO 11, 412-414