A. Rolfs et al., C-13 NMR CHEMICAL-SHIFT ASSIGNMENTS OF N-MONOSUBSTITUTED AND N,N-DISUBSTITUTED 3-AMINOPYRROLES, Magnetic resonance in chemistry, 32(12), 1994, pp. 782-786
C-13 NMR chemical shift assignments of 47 N-mono- and N,N-disubstitute
d 3-aminopyrroles with hydrogen or methyl in the 5-position are report
ed. Substituents in the 2-position are electron withdrawing such as al
koxycarbonyl, cyano or acyl in most cases and those in the 4-position
are aryl or ethoxycarbonyl.