Synthesis of 4-Alkynylpyrrolo[2,3-<i>d</i>]pyrimidines by Palladium-Catalyzed Cross-Coupling Reactions
作者:Sigitas Tumkevicius、Viktoras Masevicius
DOI:10.1055/s-2007-990882
日期:2007.12
palladium-catalyzed cross-coupling reaction of methyl- 5-amino-4-chloro- and 5-amino-4-iodo-7-methyl-2-(methylsulfanyl)-7 H-pyrrolo[2,3- D]pyrimidine-6-carboxylate with various terminal alkynes has been investigated. The 4-iodo derivative was found to be a good substrate for the synthesis of various 4-alkynylpyrrolopyrimidines. A simple synthesis of 4-(indol-2-yl)pyrrolo[2,3- D]pyrimidines by the reaction of 4-
甲基-5-氨基-4-氯-和5-氨基-4-碘-7-甲基-2-(甲基硫烷基)-7 H-吡咯并[2,3-D]嘧啶的钯催化交叉偶联反应已经研究了具有各种末端炔烃的-6-羧酸盐。发现 4-碘衍生物是合成各种 4-炔基吡咯并嘧啶的良好底物。在二氯双(三苯基膦)钯和铜(I)存在下,通过 4-碘吡咯并嘧啶与 2-乙炔基-N-甲磺酰苯胺反应简单合成 4-(吲哚-2-基)吡咯并[2,3-D]嘧啶碘化物被描述。