tropilidenen.
/trəʊˈpɪlᵻdiːn/, U.S. /ˌtroʊˈpɪləˌdin/ Chemistry.
A liquid unsaturated cyclic hydrocarbon whose molecule has a seven-membered ring, first obtained by distilling tropine. Cf. tropylium n.The tropilidine ring contains three double bonds. Systematic name: cycloheptatriene; C7H8.
ΚΠ
1883 Jrnl. Chem. Soc. 44 672 With regard to the constitution of tropine, the author finds that when it is heated with soda-lime, methylamine and a hydrocarbon like tropilidene, C7H8, stand prominent amongst the products.
1913 T. A. Henry Plant Alkaloids 77 On adding hydrogen bromide to a solution of tropilidene in acetic acid, bromocycloheptadiene was formed.
1964 I. L. Finar Org. Chem. (ed. 3) II. xiv. 511 Exhaustive methylation of tropine gives tropilidene (cyclo-heptatriene), C₇H₈.
1975 Antimicrobial Agents & Chemotherapy 8 381/1 Tropilidine and tropone possess bacteriostatic and bactericidal activity.
2012 Tetrahedron 68 3744/1 [The] Büchner reaction..is synthetically useful to prepare an optically active cycloheptatriene skeleton (tropilidene) in one step from a phenyl moiety.
This entry has been updated (OED Third Edition, March 2014; most recently modified version published online March 2022).
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n.1883