29Si and 13C NMR spectra of 4??substituted 2??methoxytrimethylsiloxybenzenes. Factors determining the chemical shifts in models of lignin constituents

J Schraml, M Kvíčalová, V Chvalovský…

文献索引：Schraml, Jan; Kvicalova, Magdalena; Chvalovsky, Vaclav; Elder, Thomas; Brezny, Robert Magnetic Resonance in Chemistry, 1990 , vol. 28, # 11 p. 973 - 978

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被引用次数: 2

摘要

Abstract 29 Si and 13 C NMR chemical shifts are reported for a series of twenty 4-substituted 2-methoxytrimethyl-siloxybenzenes; the set of substituents incorporates a basic set of ten substituents differing in their relative polar and resonance effects and ten other substituents which model substituents encountered in lignins. The factors affecting the chemical shifts are discussed using a comparison with the NMR data for a similar series of compounds, ...