Indene

Indene

Chembox new
ImageFile=Indene.pngImageSize=150px
IUPACName=1H-indene
OtherNames=
Section1= Chembox Identifiers
CASNo=95-13-6
PubChem=7219
SMILES=C1C=CC2=CC=CC=C21
Section2= Chembox Properties
Formula=C9H8
MolarMass=116.16
Appearance=
Density=
MeltingPt=
BoilingPt=
Solubility=
Section3= Chembox Hazards
MainHazards=
FlashPt=
Autoignition=

Indene is a flammable polycyclic hydrocarbon with chemical formula C9H8. It is composed of a benzene ring fused with a cyclopentene ring and occurs as a colorless to pale yellow liquid. A principal industrial use of indene is in the production of indene/cumarone thermoplastic resins.

It is also known as benzocyclopentadiene, and occurs naturally in coal-tar fractions boiling around 175-185 °C. It can be obtained from this fraction by heating with sodium (indene is acidic), separating the solid sodio-indene, and recovering by steam distilling it.

Indene readily polymerises. Oxidation of indene with acid dichromate yields homophthalic acid.

It condenses with ethyl oxalate in the presence of sodium ethoxide to form indene-oxalic ester, and with aldehydes or ketones in the presence of alkali to form benzofulvenes. The latter are highly coloured.

See also

* Indane
* Indole
* Isoindene

References

*cite journal
title = Zur Synthese von Indenderivaten
author = W. v. Miller, Rohde
journal = Berichte der deutschen chemischen Gesellschaft
volume = 22
issue = 2
pages = 1881–1886
year = 1889
doi = 10.1002/cber.18890220227
*cite journal
title = Zur Synthese von Indenderivaten
author = W. v. Miller, Rohde
journal = Berichte der deutschen chemischen Gesellschaft
volume = 23
issue = 2
pages = 1881–1886
year = 1890
doi = 10.1002/cber.18900230228
*cite journal
title = Zur Synthese von Indenderivaten
author = W. v. Miller, Rohde
journal = Berichte der deutschen chemischen Gesellschaft
volume = 23
issue = 2
pages = 1887–1902
year = 1890
doi = 10.1002/cber.18900230227
*cite book
title = Organic Chemistry
last = Finar
first = I. L.
publisher = Longman Scientific & Technical
isbn = 0582442575
date = 1985


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Look at other dictionaries:

  • Indène — Général Synonymes Benzocylopentadiène Indonaphtène No CAS …   Wikipédia en Français

  • indène — ● indène nom masculin Hydrocarbure aromatique bicyclique, C9H8, que l on trouve dans les goudrons de houille. (Il est généralement copolymérisé sous forme de mélange avec la coumarone.) indène [ɛ̃dɛn] n. m. ÉTYM. 1907, in Larousse mensuel, mars;… …   Encyclopédie Universelle

  • indene — adj. 2 g. 1. Que não sofreu dano ou prejuízo. 2. Incólume; ileso.   ♦ Grafia em Portugal: indemne …   Dicionário da Língua Portuguesa

  • indene — [in′dēn΄] n. [ IND(OLE) + ENE] a colorless, oily hydrocarbon, C9H8, obtained from coal tar and used in the manufacture of synthetic resins …   English World dictionary

  • indene — indenas statusas T sritis chemija formulė C₉H₈ atitikmenys: angl. indene rus. инден …   Chemijos terminų aiškinamasis žodynas

  • indene — /in deen/, n. Chem. a colorless, liquid hydrocarbon, C9H8, obtained from coal tar by fractional distillation: used in synthesizing resins. [1885 90; IND + ENE] * * * …   Universalium

  • indene — noun The bicyclic hydrocarbon consisting of a benzene ring fused to one of cyclopentadiene …   Wiktionary

  • indene — [ ɪndi:n] noun Chemistry a colourless liquid hydrocarbon used in making synthetic resins. Origin C19: from indole + ene …   English new terms dictionary

  • indėnė — indėnas, indėnė dkt. Daugybė indėnų genčių̃ ir tautų̃ tùri skirti̇̀ngas kalbàs ir kultūràs …   Bendrinės lietuvių kalbos žodyno antraštynas

  • indene — in·dene …   English syllables

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