Cis, trans isomerization of conjugated linoleates by lodine and light | Zendy

Tolberg W. E. | Zendy; Wheeler D. H. | Zendy

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Cis, trans isomerization of conjugated linoleates by lodine and light

Author(s) -

Tolberg W. E.,

Wheeler D. H.

Publication year - 1958

Publication title -

journal of the american oil chemists' society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.512

H-Index - 117

eISSN - 1558-9331

pISSN - 0003-021X

DOI - 10.1007/bf02632551

Subject(s) - cis–trans isomerism , conjugated system , isomerization , infrared , chemistry , ultraviolet , photochemistry , absorption (acoustics) , infrared spectroscopy , stereochemistry , materials science , organic chemistry , polymer , catalysis , physics , optics , optoelectronics , composite material

Summary Infrared and ultraviolet studies have shown that the three geometrically isomeric types of conjugated linoleates ( cis, cis; cis, trans ; and trans, trans ) are readily equilibrated by dilute iodine and light. Infrared shows that the equilibrium is at 32% cis, trans and 64% trans, trans isomer. Probably no more than 5–10%, if any, cis, cis isomer exists at equilibrium. The equilibrated mixture can be used to determine total conjugation in mixtures of conjugated geometric isomers by either infrared or ultraviolet absorption.

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