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Topic: Alkene


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In the News (Sun 26 May 19)

  
  alkene – FREE alkene Information | Encyclopedia.com: Facts, Pictures, Information!
Two alkenes, 1-butene and 2-butene, are related to butane; these two compounds, which differ in the location of the double bond in their molecules, are structural isomers.
Many of the reactions in which alkenes take part involve the cleavage of half the carbon-carbon double bond and subsequent formation of two single bonds, one to each of the adjacent carbon atoms.
Alkenes are made by the dehydration of alcohols, and are used as...
www.encyclopedia.com /doc/1E1-alkene.html   (915 words)

  
  alkene. The Columbia Encyclopedia, Sixth Edition. 2001-05
Two alkenes, 1-butene and 2-butene, are related to butane; these two compounds, which differ in the location of the double bond in their molecules, are structural isomers.
The alkenes as a group are sometimes called the ethylene series.
Many of the reactions in which alkenes take part involve the cleavage of half the carbon-carbon double bond and subsequent formation of two single bonds, one to each of the adjacent carbon atoms.
www.bartleby.com /65/al/alkene.html   (282 words)

  
 Alkene Nomenclature
Alkenes represent one of the most common functional groups in organic chemistry.
The root, or parent name for an unbranched alkene is taken directly from the number of carbons in the chain according to a scheme of nomenclature established by the International Union of Pure and Applied Chemistry (IUPAC), as described previously for alkanes.
Historically, alkenes have been named using cis- and trans- to represent stereochemistry around the double bond; cis- for compounds where the "main substituents" are on the same side of the double bond, and trans- when they are on opposite sides.
www.chem.uic.edu /web1/OCOL-II/WIN/ALKENE/60/ALKENE1.HTM   (544 words)

  
 alkene
Alkenes are unsaturated compounds, characterized by one or more double bonds between adjacent carbon atoms.
Lighter alkenes, such as ethene and propene, are gases, obtained from the cracking of oil fractions.
Alkenes react by addition, and many useful compounds, such as polythene and bromoethane, are made from them.
www.tiscali.co.uk /reference/encyclopaedia/hutchinson/m0026438.html   (150 words)

  
 Organometallic HyperTextBook: Alkene Complexes
Alkene or olefin ligands are common in organotransition metal chemistry.
X-ray crystallographic studies confirm that the as the C-C bond length increases, the CH plane is distorted from the ideal planar geometry of an alkene:
Reduction of a higher valent metal in the presence of an alkene.
www.ilpi.com /organomet/alkene.html   (530 words)

  
 Alkene
Verbindungen, die nur aus Kohlenstoff und Wasserstoff bestehen, sind die Alkene, für die die allgemeine Formel
Alkene sind daher ungesättigte Verbindungen, zum Unterschied von den Alkanen, den gesättigten Verbindungen.
Neben der systematischen Bezeichnungsweise Alkene (Genfer Nomenklatur, sind noch andere Benennungen gebräuchlich:
www.tomchemie.de /Alkene   (155 words)

  
 Alkene Summary and Analysis Summary
The alkenes are a functional group characterized by the presence of a carbon-carbon double bond.
In organic chemistry, an alkene, olefin, or olefine is an unsaturated chemical compound containing at least one carbon-to-carbon double bond.
As custom manufacturers gather for InformexUSA this month, they are confronted with the ongoing task of meeting the pharmaceutical industry's demand for cost-effective routes to manufacturing increasingly complex molecules.
www.bookrags.com /Alkene   (116 words)

  
 alkene — Infoplease.com
Two alkenes, 1-butene and 2-butene, are related to butane; these two compounds, which differ in the location of the double bond in their molecules, are structural
olefin - olefin olefin or olefin series:see alkene.
polyolefins - polyolefins polyolefins, group of plastics that are polymers of various alkenes, or olefins.
www.infoplease.com /ce6/sci/A0803367.html   (377 words)

  
 Welcome to Alkene!...More than Chemistry,Your Complete Chemical Solution!
The University of Birmingham is currently seeking Suppliers based in the West Midlands for Domestic and Automotive Fuel Cell systems...For further information, please click on Scratch logo
Alkene is a West Midlands (UK) based Consultancy company specialising in offering various services to Micro- and Small and Medium-Sized Enterprises (SMEs) involved in the Chemical and Food Industry.
We are a team of highly-qualified Chemical and Management Consultants with experience in RandD and senior management both from Academia and Industry.
www.alkene.co.uk   (287 words)

  
 Alkene
A2 [A2-Lösung] Geben Sie die Strukturformeln und Namen aller Isomeren (ohne Ringstrukturen!) mit der Summenformel C
A3 [A3-Lösung] Ordnen Sie die folgenden Alkene nach steigender Additionsgeschwindigkeit von Brom (nur Nummernfolge angeben!):
A4 [A4-Lösung] Geben Sie die Strukturformeln und die Namen der Hauptprodukte an, die bei der Addition von 1 Molekül Chlorwasserstoff an die folgenden Verbindungen entstehen und begründen Sie Ihre Entscheidung:
www.tgs-chemie.de /alkene.htm   (770 words)

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