外型和内型C-2位单取代降冰片烯衍生物的核磁共振波谱研究

王子豪,徐赫,汪涛,杨善中,丁运生,魏海兵

NMR Spectroscopic Studies on (exo, endo) C-2 Monosubstituted Norbornene Derivatives

Zi-hao WANG,He XU,Tao WANG,Shan-zhong YANG,Yun-sheng DING,Hai-bing WEI

表4 endo-NB-CH₂OH上的¹H和¹³C化学位移归属

Table 4 ¹H NMR and ¹³C NMR assignments of endo-NB-CH₂OH

Position	δ_C	δ_H (J/Hz)	¹H -¹H COSY	¹H-¹³C HMQC
1	43.6	2.93 (1H, m)	H-2, 6, 7a, 7b	+
2	41.7	2.29 (1H, m)	H-1, 3a, 3b, 8a, 8b	+
3a b	28.8	1.82 (1H, ddd, J₁=12.0 Hz, J₂=9.0 Hz, J₃=3.6 Hz) 0.52 (1H, ddd, J₁=12.0 Hz, J₂=4.2 Hz, J₃=2.4 Hz)	H-2, 3b, 4 H-2, 3a, 4	+
4	42.2	2.81 (1H, m)	H-3a, 3b, 5, 7a, 7b	+
5	137.4	6.14 (1H, dd, J₁=6.0 Hz, J₂=3.0 Hz)	H-4, 6	+
6	132.1	5.95 (1H, dd, J₁=6.0 Hz, J₂=3.0 Hz)	H-1, 5	+
7a b	49.5	1.45 (1H, dm, J₁=8.4 Hz) 1.27 (1H, d, J₁=8.4 Hz)	H-1, 4, 7b H-1, 4, 7a	+
8a b 8β	66.5	3.26 (1H, dd, J₁=10.2 Hz, J₂=8.4 Hz) 3.40 (1H, dd, J₁=10.2 Hz, J₂=6.6 Hz) 1.42 (1H, s)	H-2, 8b H-2, 8a /	+