3.2 13C NMR analysis of MO and EMO
In 13C NMR spectrum, formation of EMO was confirmed
through the appearance of signal at δ 57.1 ppm corresponding to
oxirane ring carbon and simultaneously disappearance of signals due to
olefinic carbons of MO at δ 125 - 130 ppm (Fig. 2 ).
Characterization of methyl oleate by 13C NMR
(100 MHz, CDCl3) δ (ppm) : 174
(-CH2C O-), 130.1
(-CH=C H-(CH2)7CO-), 130
(-CH2-C H=CH-), 57.1
(-C HOC H-), 51.4 (-OC H3), 34.0
(-C H2CO-), 31.8
(-CH3CH2C H2-),
29.6
(-(C H3)2(CH2)2CHOCH(CH2)2(C H2)3),
27.8
(-(C H3)2(CH2)2CHOCH(CH2)2(C H2)3),
27.2 (-C H2CHOCHC H2),
26.6
(-C H2CH2CHOCHCH2C H2-),
24.9 (-C H2CH2CO-), 22.6
(-C H2CH3), 14.1
(-C H3) as shown in Fig. 2a.
Characterization of epoxymethyl oleate by 13C
NMR (100 MHz, CDCl3) δ (ppm) : 174
(-CH2C O-), 57.1 (-C HOC H-),
51.4 (-OC H3), 34.0
(-C H2CO-), 31.8
(-CH3CH2C H2-),
29.6
(-(C H2)3(CH2)2CHOCH(CH2)2(CH2)3),
27.8
(-(C H2)3(CH2)2CHOCH(CH2)2(CH2)3),
27.2 (-C H2CHOCHC H2),
26.6
(-C H2CH2CHOCHCH2C H2-),
24.9 (-C H2CH2CO-), 22.6
(-C H2CH3), 14.1
(-C H3) as shown in Fig. 2b.