Synthesis of 2,3-Disubstituted Indole Using Palladium(II)-Catalyzed Cyclization with Alkenylation Reaction.
作者:Akito Yasuhara、Yousuke Takeda、Naoyuki Suzuki、Takao Sakamoto
DOI:10.1248/cpb.50.235
日期:——
reaction of ethyl 2-ethynylphenylcarbamate derivative with alkenes in the presence of a palladium(II) catalyst, copper dichloride and tetrabutylammonium fluoride (TBAF) produced 2-substituted 3-ethenylindoles during refluxing. The intramolecular cyclization reaction of ethyl 2-ethynylphenylcarbamates, which have an ethenyl part in the ethynyl group, was also used to produce carbazole derivatives.
2-乙炔基苯基氨基甲酸乙酯衍生物在钯(II)催化剂,二氯化铜和氟化四丁基铵(TBAF)的存在下与烯烃的反应在回流过程中产生了2-取代的3-乙烯基吲哚。还使用在乙炔基中具有乙烯基部分的2-乙炔基苯基氨基甲酸乙酯的分子内环化反应来制备咔唑衍生物。