Differentiation of isomeric allylic alkenyl methyl ethers by Raman spectroscopy

Clifford, Paul R.; Bowen, Richard D.; Edwards, Howell G. M.; Farwell, Dennis W.

doi:10.1016/j.aca.2007.07.042

Cited by 6 publications

(1 citation statement)

References 20 publications

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“…11 Indeed, the observation of this band is useful in identifying ethers of general structure R 1 R 2 C(OCH 3 CH CH 2 and distinguishing them from their allylic isomers, R 1 R 2 C CHCH 2 OCH 3 . This interpretation is almost certainly not correct in the case of 1.…”

Section: The 100-1500 CM −1 Regionmentioning

confidence: 99%

Raman spectroscopy of 3‐(pent‐1‐enyl) methyl ether and selected deuterium‐labelled analogues

Brown

Bowen

Edwards

et al. 2007

J Raman Spectroscopy

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The Raman spectra of 3-(pent-1-enyl) methyl ether (3-methoxypent-1-ene) and four deuterium-labelled analogues are reported and discussed. Correlations between specific structural features and the associated Raman bands are developed, with a view to enhancing the analytical application of Raman spectroscopy in investigating materials containing an alkenyl group. Particular attention is given to developing means of distinguishing the methyl group attached to the carbon skeleton from that of the methoxy group, to maximize the analytical utility of the signals associated with n(sp 2 CH), n(sp 2 CH 2 ) and n(C C) stretching vibrations, and to interpreting in more detail certain d(sp 2 CH) and d(sp 2 CH 2 ) vibrations of the atoms of the double bond. These results establish a definitive spectroscopic protocol for differentiating a methoxy group from a methyl substituent attached directly to a carbon atom in unsaturated ethers.

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Section: The 100-1500 CM −1 Regionmentioning

confidence: 99%