pentylenen.
/ˈpɛntᵻliːn/, U.S. /ˈpɛn(t)əˌlin/ Chemistry. Now rare.
= pentene n. Also: = pentinene n.
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the world > matter > chemistry > organic chemistry > hydrocarbons > [noun] > alkenes > straight-chained, by number of carbon atoms > five
amylene1858
pentene1872
pentylene1887
1887 Jrnl. Chem. Soc. 51 836 γ-pentylene glycol is a thick colourless inodorous syrup, which mixes with water in all proportions.
1892 H. F. Morley & M. M. P. Muir Watts' Dict. Chem. (rev. ed.) III. 807/1 Pentinenes C5H8. Pentylenes. Pentines.
1923 Jrnl. Amer. Chem. Soc. 45 133 Besides these two reactions..a small amount of pentylene is formed... We were unable to identify this pentylene, owing to our having only a few grams of its dibromide.
1932 Industr. & Engin. Chem. 24 434/1 Trimethylethylene..is the most stable of the isomeric pentylenes, and isopropylethylene is the least stable.
1953 I. Heilbron & H. M. Bunbury Dict. Org. Compounds (rev. ed.) IV. 69/2 1-Pentene (Propylethylene, α-amylene, 1-pentylene).
This entry has been updated (OED Third Edition, September 2005; most recently modified version published online March 2022).
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n.1887- depressives
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