Coumarone

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Related to benzofuran: Benzothiophene

coumarone

[′kü·mə‚rōn]
(organic chemistry)
C8H6O A colorless liquid, boiling point 169°C.

Coumarone

 

(also benzofuran), a colorless liquid with a characteristic odor. Melting point, — 28.5°C; boiling point, 170.9°C; density, 1.091 g/cm3 at 20°C; refractive index, nD22.7, 1.5645. It has the following structural formula:

Coumarone is soluble in common organic solvents but is insoluble in water. It is resistant to the action of alkalis and resinifies in the presence of sulfuric acid. Coumarone is contained in coal tar, but it can also be synthesized, for example, by heating o-hydroxy-²-chlorostyrene, HOC6H4CH = CHCl, with an alkali. Products obtained from the copolymerization of coumarone with indene (coumarone-indene resins) are used in industry.

References in periodicals archive ?
Among others one can see the cyclic saturated and unsaturated hydrocarbons, benzofuran and its alkyl derivatives, and aromatic nitriles and its derivatives.
Antitubercular Activity of Benzofuran and Naphthofuran Derivatives.
In the literature, there has not been enough work on the investigation of thermal degradation kinetics of methacrylate polymers with 5-bromo benzofuran derivative so far.
Dronedarone (Multaq), a benzofuran derivative that is an analogue of amiodarone, is approved in the United States and the European Union for a different population of patients with AF, not those with permanent AF, and "the benefit-risk of Multaq remains unchanged in its approved indication in nonpermanent AF," the company said in a press release.
Today, we can reveal that a Polish gang is behind the mass distribution of Benzo Fury, which is also known by its chemical name 6-APB or benzofuran.
In the present study, we have used the dual excitation, sodium-sensitive fluorescent indicator, sodium-binding benzofuran isophthalate, SBFI, to examine the effect of quinidine on intracellular sodium.
Khoshroo, An Electrochemical Study of Benzofuran Derivative in Modied Electrode-based CNT/Ionic Liquids for Determining Nanomolar Concentrations of Hydrazine, Electrochim.
Some of the major compounds include monoterpene hydrocarbons (p-cymene, limonene, [alpha]-pinene, and [alpha]-terpinene), oxygenated monoterpenes (camphor, carvacrol, eugenol, and thymol), diterpenes (cembrene C, kaurene, and camphorene), sesquiterpene hydrocarbons ([beta]-caryophyllene, germacrene D, and humulene), oxygenated sesquiterpenes (spathulenol, caryophyllene oxide), monoterpene alcohols (geraniol, linalool, and nerol), sesquiterpene alcohol (patchoulol), aldehydes (citral, cuminal), acids (geranic acid, benzoic acid), ketones (acetophenone, benzophenone), lactones (bergapten), phenols (eugenol, thymol, carvacrol, and catechol), esters (bornyl acetate, ethyl acetate), and coumarins (fumarin, benzofuran) [1, 4, 8, 13, 104, 105].
The two first compounds provided by SIRIUS/ CSI:MSFinger for formula C13H12O4 shared benzofuran structure (13, 15, UNPD); few hundred benzofurans have been identified in all morphological parts of plants, mainly belonging to Asteraceae family [41].
Pterocarpans, a special kind of isoflavonoids owing two contiguous benzofuran and benzopyran rings, are also known to display several biological activities (Militao et al.