Carbon-13 NMR spectra of 1,3-dioxolanes. II—determination of α, β and γ parameters for 2- and 4-methyl groups in stereoisomeric derivatives by the pattern molecule method

Carbon-13 NMR spectra of 1,3-dioxolanes.

Carbon-13 NMR spectra of 1,3-dioxolanes. I—new parameters for cis- and trans-4-methyl groups in 2,4-disubstituted derivatives

✍ Antonio Espinosa; Miguel A. Gallo; Joaquín Campos; Antonio Entrena; Encarnación 📂 Article 📅 1986 🏛 John Wiley and Sons 🌐 English ⚖ 465 KB

The uC NMR spectra of 24 1,3-dioxoIane derivatives are reported in an attempt to propose parameters for the C-2, C-4 and C-5 shifts from the %Me and 4-Me substituents, based on the ring stereochemistry. These parameters are obtained from simultaneous equations, and clearly agree with those Calculate