Indole-containing derivatives of α-pyrrolidone: Synthesis and structure
摘要:
4-(Indol-3-yl)-2-pyrrolidone and its derivatives have been synthesized via sequential hydrogenation of indole-containing esters of 4-nitrobutanoic acid, alkaline hydrolysis of the resulting 3-methoxycarbonyl-2- pyrrolidones, and decarboxylation of the isolated 2-pyrrolidone-3-carboxylic acids. Structures of the products have been confirmed by IR, H-1 NMR, H-1-C-13 HMQC, and H-1-H-1 NOESY spectroscopy methods.
The reduction of aromatic and aliphatic nitro groups to anilines and amines is performed with good yield and selectivity in short reaction times. A mixture of sodium hypophosphite and phosphinic acid is used in the presence of a heterogeneous catalyst 2.5 mol% of Pd/C (5%) in a biphasic water/2-MeTHF system.
Hydrazides of 4-aryl(hetaryl)-2-oxopyrrolidine-3-carboxylic acids: Synthesis and structure
作者:N. V. Gorodnicheva、E. S. Ostroglyadov、O. S. Vasil’eva、V. V. Pelipko、V. V. Gurzhii、V. M. Berestovitskaya、E. S. Lipina
DOI:10.1134/s1070428016110129
日期:2016.11
Proceeding from reactions of methyl 4-aryl(hetaryl)-2-oxopyrrolidine-3-caroxylates with hydrazine and phenylhydrazine a series of hydrazides of the corresponding 2-oxopyrrolidine-3-carboxylic acids was obtained combining in the molecule a lactam ring and carbohydrazide groups. Phenylhydrazides of 2-oxopyrrolidine-3-carboxylic acids possess the Z-configuration.
Facile synthesis of heteroaryl substituted $\gamma$-lactams from nitrovinyl arenes
作者:Seda ÇINAR、Canan ÜNALEROĞLU
DOI:10.3906/kim-1705-25
日期:——
Aliphatic nitroalkanes with different functional groups were synthesized from the Michael addition reactions of active methylene compounds 2 and nitrovinyl arenes 1 in high yields. The synthesized Michael adducts were subjected to intramolecular cyclization to give heteroaryl substituted γ-lactams in good to high yields under mild reaction conditions.
Indole-containing derivatives of α-pyrrolidone: Synthesis and structure
作者:E. S. Ostroglyadov、O. S. Vasil’eva、S. M. Aleksandrova、V. V. Pelipko、V. M. Berestovitskaya、I. N. Tyurenkov、V. V. Bagmetova
DOI:10.1134/s1070363215080095
日期:2015.8
4-(Indol-3-yl)-2-pyrrolidone and its derivatives have been synthesized via sequential hydrogenation of indole-containing esters of 4-nitrobutanoic acid, alkaline hydrolysis of the resulting 3-methoxycarbonyl-2- pyrrolidones, and decarboxylation of the isolated 2-pyrrolidone-3-carboxylic acids. Structures of the products have been confirmed by IR, H-1 NMR, H-1-C-13 HMQC, and H-1-H-1 NOESY spectroscopy methods.