Search results
Results from the WOW.Com Content Network
Oxindole (2-indolone) is an aromatic heterocyclic organic compound with the formula C 6 H 4 CHC(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 ...
Melting point: 52 to 54 °C (126 to 129 °F; 325 to 327 K) ... Then, in 1866, Adolf von Baeyer reduced oxindole to indole using zinc dust. [7] In 1869, he proposed a ...
Melting point: 125 to 126 °C (257 to 259 °F; 398 to 399 K) ... Horsfiline is an oxindole alkaloid found in the plant Horsfieldia superba, [1] which is used in ...
Phenylhydrazine is used to prepare indoles by the Fischer indole synthesis, which are intermediates in the synthesis of various dyes and pharmaceuticals.. Phenylhydrazine is used to form phenylhydrazones of natural mixtures of simple sugars in order to render the differing sugars easily separable from each other.
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more
This page contains tables of azeotrope data for various binary and ternary mixtures of solvents. The data include the composition of a mixture by weight (in binary azeotropes, when only one fraction is given, it is the fraction of the second component), the boiling point (b.p.) of a component, the boiling point of a mixture, and the specific gravity of the mixture.
Isatin, also known as tribulin, is an organic compound derived from indole with formula C 8 H 5 NO 2.The compound was first obtained by Otto Linné Erdman [1] and Auguste Laurent [2] in 1840 as a product from the oxidation of indigo dye by nitric acid and chromic acids.
The Gmelin rare earths handbook lists 1522 °C and 1550 °C as two melting points given in the literature, the most recent reference [Handbook on the chemistry and physics of rare earths, vol.12 (1989)] is given with 1529 °C.