vinylogousadj.
/vʌɪˈnɪləɡəs/ Chemistry.
Of, pertaining to, or being compounds that have the same molecular structure except for one or more CH:CH groups.
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vinylogous1935
1935 R. C. Fuson in Chem. Rev. 16 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.
1977 Nature 14 Apr. 660/2 The reaction (21)→(22) is not, as stated, a vinylogous Norrish type I reaction.
Derivatives
ˈvinylogue n. (U.S.vinylog) a vinylogous compound.
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vinylogue1935
vinylogy1966
1935 R. C. Fuson in Chem. Rev. 16 2 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.
1978 A. 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.
viˈnylogy n. the relationships between vinylogous compounds.
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vinylogue1935
vinylogy1966
1966 McGraw-Hill Encycl. Sci. & Technol. (rev. ed.) 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.
This entry has not yet been fully updated (first published 1986; most recently modified version published online June 2018).
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adj.1935