Research Article

A Validated 1H NMR Method for the Quantitation of 5-Hydroxymethyl-2(5H)-Furanone, a Valuable Chemical Intermediate, In a Dichloromethane Extract of Helleborus lividus subsp: Corsicus Leaves from Corsica

Table 1

Structure and NMR data of 5-hydroxymethyl-2(5H)-furanone.

δ (13C ; ppm)DEPTδ (1H ; ppm)HMBCCOSY
C1173.52C=OC2 ; C3
C2122.86CH6.16; ddC1 ; C3 ; C4H3
C3153.97CH7.50; ddC1 ; C2 ; C4 ; C5H2 ; H4
C484.31CH5.17; mC2 ; C3 ; C5H3 ; H5
C562.18CH24.01; dd 3.80; ddC3; C4H4