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Oxindole (2-indolone) is an aromatic heterocyclic organic compound with the formula C 6 H 4 CH 2 C(O)NH. It has a bicyclic structure, consisting of a six-membered benzene ring fused to a five-membered nitrogen-containing ring. Oxindole is a modified indoline with a substituted carbonyl at the second position of the 5-member indoline ring ...
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Indole is an organic compound with the formula C 6 H 4 CCNH 3.Indole is classified as an aromatic heterocycle.It has a bicyclic structure, consisting of a six-membered benzene ring fused to a five-membered pyrrole ring.
The Martinet dioxindole synthesis is utilized in the preparation of oxindole derivatives. Oxindole derivatives found in natural products are gaining popularity in research because of their structural diversity. 3-substituted-3-hydroxy-2-oxindole is the central structure of a wide variety of biologically important compounds found in natural products.
The Hinsberg oxindole synthesis is a method of preparing oxindoles from the bisulfite additions of glyoxal. [ 1 ] [ 2 ] It is named after its inventor Oscar Hinsberg . [ 3 ] [ 4 ] [ 5 ]
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Horsfiline is an oxindole alkaloid found in the plant Horsfieldia superba, [1] which is used in traditional herbal medicine.It has analgesic effects [medical citation ...
Mitraphylline, an oxindole derivative, is an active alkaloid in the leaves of the tree Mitragyna speciosa, commonly known as kratom. [1] As a non-narcotic constituent, it also occurs to a significant amount in the bark of Uncaria tomentosa (Cat's Claw) along with a number of isomeric alkaloids.