Abstract
The occurrence of structural elements with formyl groups in spruce lignin (units of the coniferaldehyde, vanillin, a-aryloxyacrolein, and glyceraldehyde-2-aryl ether type) has been studied by 1H NMR spectroscopy. Signals from formyl protons were found to be essentially due to coniferaldehyde and vanillin units. By integration the amount of coniferaldehyde units was determined as 4 %·
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CITATION STYLE
APA
Lundquist, K., Olsson, T., Boll, P. M., Hope, H., Christensen, A., & Schroll, G. (1977). NMR Studies of Lignins. 1. Signals Due to Protons in Formyl Groups. Acta Chemica Scandinavica, 31b, 788–792. https://doi.org/10.3891/acta.chem.scand.31b-0788
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