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  2. Propyl group - Wikipedia

    en.wikipedia.org/wiki/Propyl_group

    In organic chemistry, a propyl group is a three-carbon alkyl substituent with chemical formula −CH 2 CH 2 CH 3 for the linear form. This substituent form is obtained by removing one hydrogen atom attached to the terminal carbon of propane. [1] A propyl substituent is often represented in organic chemistry with the symbol Pr (not to be ...

  3. Alkyl group - Wikipedia

    en.wikipedia.org/wiki/Alkyl_group

    Here three identical alkyl groups attached to carbon atoms 2, 3, and 3. The numbers are included in the name to avoid ambiguity about the position of the groups, and "tri" indicates that there are three identical methyl groups. If one of the methyl groups attached to the third carbon atom were instead an ethyl group, then the name would be 3 ...

  4. Methyl group - Wikipedia

    en.wikipedia.org/wiki/Methyl_group

    Different ways of representing a methyl group (highlighted in blue) In organic chemistry, a methyl group is an alkyl derived from methane, containing one carbon atom bonded to three hydrogen atoms, having chemical formula CH 3 (whereas normal methane has the formula CH 4). In formulas, the group is often abbreviated as Me.

  5. Ethyl group - Wikipedia

    en.wikipedia.org/wiki/Ethyl_group

    In organic chemistry, an ethyl group (abbr. Et) is an alkyl substituent with the formula −CH 2 CH 3, derived from ethane (C 2 H 6). Ethyl is used in the International Union of Pure and Applied Chemistry 's nomenclature of organic chemistry for a saturated two-carbon moiety in a molecule, while the prefix " eth- " is used to indicate the ...

  6. Functional group - Wikipedia

    en.wikipedia.org/wiki/Functional_group

    In organic chemistry, a functional group is a substituent or moiety in a molecule that causes the molecule's characteristic chemical reactions. The same functional group will undergo the same or similar chemical reactions regardless of the rest of the molecule's composition.

  7. Acyl group - Wikipedia

    en.wikipedia.org/wiki/Acyl_group

    In chemistry, an acyl group is a moiety derived by the removal of one or more hydroxyl groups from an oxoacid, [1] including inorganic acids. It contains a double-bonded oxygen atom and an organyl group ( R−C=O ) or hydrogen in the case of formyl group ( H−C=O ).

  8. Ethynyl group - Wikipedia

    en.wikipedia.org/wiki/Ethynyl_group

    In organic chemistry, an ethynyl group is a functional group with the formula −C≡CH. It is the acetylene molecule with one fewer hydrogen atom. Ethynyl group ( HC≡C– ), also designated as acetylenic group (from acetylene ), and referred to in IUPAC chemical nomenclature as -yne suffix.

  9. Amyl alcohol - Wikipedia

    en.wikipedia.org/wiki/Amyl_alcohol

    3-methyl-1-butanol or isoamyl alcohol or isopentyl alcohol primary 3-Methylbutan-1-ol: 131.2 2,2-dimethyl-1-propanol or neopentyl alcohol primary 2,2-Dimethylpropan-1-ol: 113.1 2-pentanol or sec-amyl alcohol or methyl (n) propyl carbinol secondary Pentan-2-ol: 118.8 3-methyl-2-butanol or sec-isoamyl alcohol or methyl isopropyl carbinol secondary