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2 endo-NB-COOH上的¹H和¹³CNMR化学位移归属

Table 2 ¹H and ¹³C NMR assignments of endo-NB-COOH

Position	δ_C	δ_H (J/Hz)	¹H -¹H COSY	¹H-¹³C HMQC
1	45.7	3.23 (1H, m)	H-2, 6, 7a, 7b	+
2	43.2	3.00 (1H, dt, J₁=9.6 Hz, J₂=J₃=4.2 Hz)	H-1, 3a, 3b	+
3a b	29.1	1.92 (1H, ddd, J₁=12.0 Hz, J₂=9.0 Hz, J₃=3.6 Hz) 1.40 (1H, ddd, J₁=12.0 Hz, J₂=4.2 Hz, J₃=2.4 Hz)	H-2, 3b, 4 H-2, 3a, 4	+
4	42.5	2.92 (1H, m)	H-3a, 3b, 5, 7a, 7b	+
5	137.9	6.21 (1H, dd, J₁=6.0 Hz, J₂=3.0 Hz)	H-4, 6	+
6	132.5	6.00 (1H, dd, J₁=6.0 Hz, J₂=3.0 Hz)	H-1, 5	+
7a b	49.7	1.45 (1H, ddd, J₁=8.4 Hz, J₂=4.2 Hz, J₃=2.4 Hz) 1.29 (1H, d, J=8.4 Hz)	H-1, 4, 7b H-1, 4, 7a	+
8	181.1	11.29 (1H, br)	/	/