| 单词 | 1-pentene |
| 释义 | > as lemmas1-pentene Each of a number of isomeric liquid alkenes with the formula C5H10; esp. either of the straight-chain isomers CH2=CH(CH2)2CH3 ( 1-pentene) or CH3CH=CH(CH2)CH3 ( 2-pentene). Cf. amylene n., pentylene n. ΘΚΠ the world > matter > chemistry > organic chemistry > hydrocarbons > [noun] > alkenes > straight-chained, by number of carbon atoms > five amylene1858 pentene1872 pentylene1887 1872 Philos. Trans. (Royal Soc.) 162 114 On decomposing these chlorides with potassium acetate, a mixture of pentene boiling at 39° to 40°, and of the acetic ethers boiling at 135° to 145°, was formed. 1877 H. Watts Fownes's Man. Chem. II. 58 Pentenes, C5H10. Of the four possible modifications..Normal Pentene, or Ethyl-allyl, C2H5.C3H5..boils at 37°..Isopentene, or Amylene, is obtained, together with isopentane, by distilling..amyl alcohol..with sulphuric acid. 1929 Jrnl. Amer. Chem. Soc. 51 3026 The method has proved highly satisfactory for the purification of the pentenes. 1992 Industr. & Engin. Chem. Res. 31 16/2 The main products produced by addition of the allyl radical to ethylene are cyclopentene and 1-pentene. 1992 Organometallics 11 1099/2 Internal olefins such as 2-pentene also produce terminal alkylsilanes. < as lemmas |
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