ONE-POT THREE-COMPONENT REACTION OF NINHYDRIN, 1,3-DICARBONYL COMPOUNDS, AND PRIMARY AMINES TO AFFORD INDENO[1,2-<i>b</i>]PYRROL-4(1<i>H</i>)-ONES
DOI:
https://doi.org/10.1007/4756Ключевые слова:
dialkyl acetylenedicarboxylate, 1, 3-dicarbonyl compound, ninhydrin, primary amine, pyrrole, Diels–Alder reaction, three-component reactionАннотация
A convenient one-pot three-component synthesis of indeno[1,2-b]pyrrol-4(1H)-ones has been developed. The reaction of ninhydrin, 1,3dicarbonyl compounds, and primary amines in the presence of PPh3 in MeCN at room temperature produces the respective indeno[1,2-b]pyrrol-4(1H)-ones in high yields. The synthesized pyrrole derivatives have been used in the Diels–Alder reaction with dialkyl acetylenedicarboxylates in MeCN under reflux conditions to obtain indeno[1,2-b]pyrano[3,4-d]pyrroles in high yields.
Загрузки
Опубликован
2018-12-12
Выпуск
Раздел
Оригинальные статьи