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Table 1 1H NMR data of compounds 15H in ppm, J in Hz)

From: 2-Benzyl-benzofurans from the tubers of Ophiopogon japonicus

Position 1 (CD3OD) 2 (CDCl3) 3 (CD3OD) 4 (CDCl3) 5 (CDCl3)
2 4.86, partially overlapped 5.05, m 5.00, m 5.02, m
3 3.07, dd (15.0, 8.5)
2.82, dd (15.0, 7.5)
3.15, dd (15.0, 8.5)
2.94, dd (15.0, 8.5)
6.16, s 3.12, dd (15.0, 8.0)
2.88, dd (15.0, 8.5)
3.09, dd (15.0, 8.5)
2.87, dd (15.0, 8.5)
4 6.67, s 6.87, s 6.82, s 6.74, d (8.0) 6.58, d (8.0)
5 6.38, d (8.0) 6.36, d (8.0)
7 6.39, s 6.83, s
2′ 7.19, d (8.5) 7.10, d (8.5) 7.18, d (8.5) 7.17, d (8.5)
3′ 6.86, d (8.5) 6.48, d (2.5) 6.74, d (8.5) 6.85, d (8.5) 6.85, d (8.5)
5′ 6.86, d (8.5) 6.43, dd (8.0, 2.5) 6.74, d (8.5) 6.85, d (8.5) 6.85, d (8.5)
6′ 7.19, d (8.5) 6.98, d (8.0) 7.10, d (8.5) 7.18, d (8.5) 7.17, d (8.5)
7′ 3.02, dd (14.0, 7.0)
2.84, dd (14.0, 6.5)
3.07, dd (15.0, 3.5)
3.01, dd (15.0, 7.0)
3.91, s 3.16, dd (14.0, 6.0)
2.90, dd (14.0, 6.0)
3.13, dd (14.0, 6.0)
2.90, dd (14.0, 6.0)
5-Me 2.12, s 2.10, s
7-Me 2.05, s
4′-OMe 3.78, s 3.75, s 3.79, s 3.78, s
6-OMe 3.76, s 3.82, s
7-OMe 3.93, s
-OCH2O- 5.90, s