Australian Journal of Chemistry

Proton magnetic resonance spectra of some β-methylstyrenes, β, β-dimethylstyrenes, and α-methylstilbenes; and a discussion of long-range shieldingand coupling …

H Rottendorf, S Sternhell, JR Wilmshurst

Index: Rottendorf,H. et al. Australian Journal of Chemistry, 1965 , vol. 18, p. 1759 - 1773

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Citation Number: 2

Abstract

Abstract The preparation of some new β, β-dimethylstyrenes and α-methylstilbenes is described and their pmr spectra are reported. The long-range shielding effects in β, β- dimethylstyrenes and other styrene derivatives are discussed. The differences between the cisoid and transoid allylic coupling constants in β, β-dimethylstyrenes are much smaller than the corresponding differences in simple propenes. No appreciable (J≥ 0.3 c/s) coupling ...