| 释义 |
vinylogous, a. Chem.|vaɪˈnɪləgəs|
[f. vinyl + -logue + -ous (or directly after analogous).]
Of, pertaining to, or being compounds that have the same molecular structure except for one or more {b1}CH:CH{b1} groups. Hence ˈvinylogue (U.S. -log), a vinylogous compound; viˈnylogy, the relationships between vinylogous compounds.
1935R. C. Fuson in Chem. Rev. XVI. 2 It is proposed to term such a group of compounds a vinylogous series. The members of a vinylogous series will then be vinylogs of one another. Ibid., In this series the operation of the principle of vinylogy may be illustrated by a comparison of the esters of saturated fatty acids with their vinylogs, the α, β-unsaturated esters. 1966McGraw-Hill Encycl. Sci. & Technol. XIV. 326/2 The principle of vinylogy may be used to explain why o- and p-nitrochlorobenzene are readily hydrolyzed to the corresponding nitrophenols, whereas the meta isomer is not. 1977Nature 14 Apr. 660/2 The reaction (21)→(22) is not, as stated, a vinylogous Norrish type I reaction. 1978A. J. Birch in Porter & Fitzsimmons Further Perspectives Organic Chem. 15 The decarboxylation needs only very mild conditions, a fact which suggests intervention of a β-keto acid or a vinylogue during the processes. |