Benzomorphan related compounds. XIV. Synthesis of 2-(2-pyrrolylmethyl)- and 2-(2-indolylmethyl)tetrahydropyridines and cyclization to pyrrolo[3,2-<i>f</i>]morphans
作者:Joan Bosch、David Mauleón、Fontsanta Boncompte、Ricardo Granados
DOI:10.1002/jhet.5570180207
日期:1981.3
The synthesis of 2-2-pyrrolylmethyl)- and 2-(2-indolylmethyl)tetrahydropyridines by condensation of 2-cyanopyridines with appropriate pyrrole or indole derivatives followed by ketone reduction, quaternization and sodium borohydride reduction are described. The acid-induced cyclization of 2-(2-pyrrolylmethyl)tetrahydropyridines affords 4,5,6,7,8,9-hexahydro-4,8-methanopyrrolo[2,3-d]azocine systems
描述了通过使2-氰基吡啶与合适的吡咯或吲哚衍生物缩合,然后进行酮还原,季铵化和硼氢化钠还原来合成2- 2-吡咯基甲基)-和2-(2-吲哚基甲基)四氢吡啶。酸诱导的2-(2-吡咯基甲基)四氢吡啶环化反应可得到4,5,6,7,8,9-六氢-4,8-甲基吡咯并[ 2,3- d ]偶氮碱系统(吡咯并[3,2- f 1-吗啉),尽管该方法用N-苄基取代的吡咯失败。对2-(2-吲哚基甲基)四氢吡啶和2-吲哚基四氢-2-吡啶基酮进行酸处理不是制备吲哚[3,2- f]的合适方法。]吗啡,分别是由于吲哚核或羰基的质子化。