Fig. 6
From: Cyclic carbamates based on (R)-(+)-limonene oxide for ring-opening polymerization

1H NMR spectra (CDCl3, 400 MHz) of cyclic carbamates 3a–d.
From: Cyclic carbamates based on (R)-(+)-limonene oxide for ring-opening polymerization

1H NMR spectra (CDCl3, 400 MHz) of cyclic carbamates 3a–d.