Sulfonamides represent a significant class of biologically active compounds that inhibit
carbonic anhydrase (CA, EC.: 4.2. 1.1) isoenzymes involved in different pathological and …

Unsubstituted cyclic imides were synthesized from a series of cyclic anhydrides,
hydroxylamine hydrochloride (NH2OH∙ HCl), and 4-N, N-dimethylamino-pyridine (DMAP …

A number of cyclic imides were synthesized from cyclic anhydrides using ammonium
chloride (NH4Cl), and 4-N, N-dimethylaminopyridine (DMAP) or with ammonium acetate …

ABSTRACT A series of novel 2-azetidinons entitled N, N'-bis [3-chloro-2-oxo-4-(substituted
pyridine-2-yl)-azetidin-1-yl] pyrazine-2, 3-dicarboxamide and N, N'-bis [3, 3-dichloro-2-oxo-4 …

N-Unsubstituted cyclic imides were readily synthesized in deep eutectic solvent (DES)
choline chloride (ChCl)/urea from anhydrides with urea. Urea serves as both a DES …

Cyclic imides have been extensively investigated because of the wide range of biological
activities they exert, as well as due to their importance as synthetic intermediates …

A series of new N, N′-bis [4-oxo-2-(pyridine-2-yl)-1, 3-thiazolidin-3-yl]-2, 2′-[1, 3, 5, 7-
tetraoxo-5, 7-dihydropyrrolo [3, 4-f] isoindole-2, 6 (1 H, 3 H)-diyl] diacetamide derivatives …

A series of novel 2-azetidinone derivatives have been obtained starting from pyromellitic
dianhydride. Pyromellitic dianhydride was converted to pyromellitic diimide using sodium …

An efficient Diels-Alder reaction is described in the furan series, leading to phthalimides in
high yields. Thermal treatment of 2-(4-morpholinyl, 1-piperidinyl, and 1-pyrrolidinyl)-3 …

An approach to dihydroindoles and tetrahydroquinolines from N-alkenylated 2-acylamino-3-
furancarbonitriles via a [4+ 2] cycloaddition reaction is described. Thermal treatment of N …