SYNTHESIS OF 1,2,6-TRISUBSTITUTED INDOLES FROM 6-PROPARGYLCYCLOHEX-2-ENONES AND PRIMARY AMINES
DOI:
https://doi.org/10.1007/6508Ключевые слова:
cyclohex-2-enone, indole, air oxidation, amination–cyclization reactionАннотация
The synthesis of 1,2,6-trisubstituted indoles from accessible 6-propargylcyclohex-2-enones and primary amines is reported. Simple acidcatalyzed amination–cyclization reaction followed by air oxidation of the corresponding intermediated 4,5-dihydroindoles was found to be suitable to obtain the desired indoles. The reaction tolerates a variety of functional groups on the starting cyclohex-2-enones and primary amines. A mechanistic pathway involving nucleophilic addition/cyclization/aromatization is proposed.Загрузки
Опубликован
2022-05-18
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Раздел
Оригинальные статьи