Reductive Pictet−Spengler Cyclization of Nitriles in the Presence of Tryptamine: Synthesis of Indolo[2,3-a]quinolizidine, Nazlinine, and Elaeocarpidine
摘要:
Preparation of tetrahydro-beta-carbolines through catalytic hydrogenation of nitriles in the presence of tryptamine was applied to simple syntheses of indolo[2,3-a]quinolizidine (3), nazlinine (4), and elaeocarpidine (7).
Reductive Pictet−Spengler Cyclization of Nitriles in the Presence of Tryptamine: Synthesis of Indolo[2,3-a]quinolizidine, Nazlinine, and Elaeocarpidine
摘要:
Preparation of tetrahydro-beta-carbolines through catalytic hydrogenation of nitriles in the presence of tryptamine was applied to simple syntheses of indolo[2,3-a]quinolizidine (3), nazlinine (4), and elaeocarpidine (7).
Oxidative rearrangement of indoles is an important transformation to yield 2-oxindoles and spirooxindoles, which are present in many pharmaceutical agents and bioactive natural products. Previous oxidation methods show either broad applicability or greenness but rarely achieve both. Reported is the discovery of Fenton chemistry-enabled green catalytic oxidative rearrangement of indoles, which has wide substrate
Reductive Pictet−Spengler Cyclization of Nitriles in the Presence of Tryptamine: Synthesis of Indolo[2,3-<i>a</i>]quinolizidine, Nazlinine, and Elaeocarpidine
作者:Khalid Diker、Khalid El Biach、Michèle Döé de Maindreville、Jean Lévy
DOI:10.1021/np970191s
日期:1997.8.1
Preparation of tetrahydro-beta-carbolines through catalytic hydrogenation of nitriles in the presence of tryptamine was applied to simple syntheses of indolo[2,3-a]quinolizidine (3), nazlinine (4), and elaeocarpidine (7).