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  2. 3-Methylpentane - Wikipedia

    en.wikipedia.org/wiki/3-Methylpentane

    It is of similar structure to the isomeric 2-methylpentane, which has the methyl group located on the second carbon of the pentane chain. As of early 1990s, it was present in American [3] and European [4] gasoline in small amounts, and by 2011 its share in US gas varied between 1.5 and 6% [5] It has close research and motor octane numbers of 74 ...

  3. Alkyl group - Wikipedia

    en.wikipedia.org/wiki/Alkyl_group

    Thus, the name is 3-methylpentane to avoid ambiguity: The 3- is because the methyl is attached to the third of the five carbon atoms. If there is more than one of the same alkyl group attached to a chain, then the prefixes are used on the alkyl groups to indicate multiples (i.e., di, tri, tetra, etc.)

  4. List of isomers of decane - Wikipedia

    en.wikipedia.org/wiki/List_of_isomers_of_decane

    3-Ethyl-2,5-dimethylhexane; ... 3,3-Diethyl-2-methylpentane; Ethyl+Trimethyl ... This page was last edited on 18 November 2024, at 00:50 ...

  5. 2-Methylpentane - Wikipedia

    en.wikipedia.org/wiki/2-Methylpentane

    As of early 1990s, it was present in American [4] and European [5] gasoline in small amounts, and by 2011 its share in US gas varied between 2 and 8%. [6] Using a quantitative structure-activity relationship (QSAR) prediction model, 2-Methylpentane has a research octane number (RON) of 75, motor octane number (MON) of 77, and cetane number (CN ...

  6. Alkane - Wikipedia

    en.wikipedia.org/wiki/Alkane

    Alkanes with more than three carbon atoms can be arranged in various ways, forming structural isomers.The simplest isomer of an alkane is the one in which the carbon atoms are arranged in a single chain with no branches.

  7. 3-Ethylpentane - Wikipedia

    en.wikipedia.org/wiki/3-ethylpentane

    3-Ethylpentane (C 7 H 16) is a branched saturated hydrocarbon. It is an alkane, and one of the many structural isomers of heptane, consisting of a five carbon chain with a two carbon branch at the middle carbon. An example of an alcohol derived from 3-ethylpentane is the tertiary alcohol 3-ethylpentan-3-ol. [3]

  8. 2,3-Dimethylpentane - Wikipedia

    en.wikipedia.org/wiki/2,3-Dimethylpentane

    The optical center is the middle carbon of the pentane backbone, which is connected to one hydrogen atom, one methyl group, one ethyl group – C 2 H 5, and one isopropyl group – CH(CH 3) 2. The two enantiomers are denoted (3R)-2,3-dimethylpentane and (3S)-2,3-dimethylpentane (the other simplest chiral alkane is its structural isomer 3 ...

  9. IUPAC nomenclature of organic chemistry - Wikipedia

    en.wikipedia.org/wiki/IUPAC_nomenclature_of...

    The longest possible main alkane chain is used; therefore 3-ethyl-4-methylhexane instead of 2,3-diethylpentane, even though these describe equivalent structures. The di-, tri- etc. prefixes are ignored for the purpose of alphabetical ordering of side chains (e.g. 3-ethyl-2,4-dimethylpentane, not 2,4-dimethyl-3-ethylpentane).