Substituent effects on carbon-13 chemical shifts in 2,6-disubstituted adamantanes
摘要:
AbstractCarbon‐13 NMR spectral data for a series of symmetrical 2,6‐disubstituted adamantanes (O, CH2, CH3, OH, OCOCH3) are presented. The substituent effects on 13C chemical shifts are additive, except for carbons 2 and 6 in 2,6‐adamantanedione. The non‐additivity of the substituent effect in the diketone can be interpreted in terms of a through‐space interaction of the carbonyl π‐electrons; the additivity in the other derivatives indicates that there is no appreciable interaction between the substituents.
Bishop, Roger; Lee, Gum-Hee, Australian Journal of Chemistry, 1987, vol. 40, # 2, p. 249 - 255
作者:Bishop, Roger、Lee, Gum-Hee
DOI:——
日期:——
Janku,J.; Landa,S., Collection of Czechoslovak Chemical Communications, 1970, vol. 35, p. 375 - 377
作者:Janku,J.、Landa,S.
DOI:——
日期:——
Substituent effects on carbon-13 chemical shifts in 2,6-disubstituted adamantanes
作者:Zdenko Majerski、Vladimir Vinković、Zlatko Meić
DOI:10.1002/mrc.1270170305
日期:1981.11
AbstractCarbon‐13 NMR spectral data for a series of symmetrical 2,6‐disubstituted adamantanes (O, CH2, CH3, OH, OCOCH3) are presented. The substituent effects on 13C chemical shifts are additive, except for carbons 2 and 6 in 2,6‐adamantanedione. The non‐additivity of the substituent effect in the diketone can be interpreted in terms of a through‐space interaction of the carbonyl π‐electrons; the additivity in the other derivatives indicates that there is no appreciable interaction between the substituents.