单词 | propenal |
释义 | propenaln. Chemistry. = acrolein n. ΘΚΠ the world > matter > chemistry > organic chemistry > aldehydes or alkanals > [noun] > miscellaneous named aldehydes > others acrolein1841 metaldehyde1841 trichlorocetaldehyde1845 valeral1852 toluic aldehyde1857 glyoxal1858 acraldehyde1864 propionic aldehyde1866 lauric aldehyde, ether1868 salicylaldehyde1869 dialdane1876 isovaleraldehyde1883 rhodinal1892 propenal1894 oxaldehyde1895 methylglyoxal1898 hadromal1899 malondialdehyde1904 pyruvic aldehyde1909 trioxan1915 plasmal1925 1894 G. M'Gowan tr. A. Bernthsen Text-bk. Org. Chem. (ed. 2) v. 149 Acrolein [Note ‘O[fficial[ N[ame]’ Propenal [Ger. Propenal]], Acrylic aldehyde, Allyl aldehyde, CH2=CH-CHO, which is produced by the oxidation of allyl alcohol, by the distillation of fats, and by heating glycerine with bisulphate of potash. 1964 J. W. Linnett Electronic Struct. Molecules ix. 150 In propenal, CH2=CH—CHO, excitation lowers the CO characteristic frequency from 1723 to 1266 cm−1. 1988 New Scientist 5 Nov. 49/1 Propenal (CH2CHCHO)..is the main culprit of the red, streaming eyes and fits of coughing we experience when bonfire smoke wafts our way. 2003 Internat. Dairy Jrnl. 14 39 Propenal and 2-methyl ketones were more abundant in 180-d-old cheeses made in autumn. This is a new entry (OED Third Edition, June 2007; most recently modified version published online March 2022). < n.1894 |
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