| 单词 |
pinene |
| 释义 |
pinene Chem.|ˈpaɪniːn|
[ad. G. pinen (O. Wallach 1885, in Ann. d. Chem. u. Pharm. CCXXVII. 300), f. L. pīn-us pine n.2 + G. -en -ene.]
Either or both of two isomeric liquid terpenes, C10H16, which are the major constituents of turpentine and differ in the position of the double bond.
1885Jrnl. Chem. Soc. XLVIII. 551 The author proposes to classify the terpenes as follows:..B. True Terpenes, C10H16, divided into the following groups: 1. Pinenes (boiling point 160°). [Etc.]. 1886Ibid. L. 71 Terpine is formed by the inversion of pinenen with alcoholic sulphuric acid. 1922Nature 16 Feb. 226/2 The yield of oil from leaves of the New South Wales sassafras tree was about 1 per cent... The principal constituents identified are safrol, camphor, pinene, sesquiterpenes, eugenol, and alcoholic bodies. 1960A. R. Pinder Chem. of Terpenes v. 93, α-Pinene is of great importance commercially in the synthesis of camphor and related terpenes... β-Pinene, which is isomeric with α-pinene, accompanies the latter in most sources of the hydrocarbon. 1971Daily Tel. 12 June 6/3 The leaf is pinched to break specialised cells containing these elements of geraniol, citral, eucalyptal, borneol, pinene and others. |
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