Magnetic Resonance in Chemistry p. 348 - 354 (1989)
Update date:2022-08-28
Topics:
Osborne, Alan G.
The 13C chemical shifts and 13C-1H coupling constants of some methoxycoumarins are reported.Some earlier spectral assignments, including those for citropten (limettin), require revision.Methoxy substituent effects on long-range 13C-1H couplings in coumarins are highlighted.Peri-proximity effects for the methyl-methoxy and mehoxy-methyl couples are derived, and the value of these effects in the assignment of peri-substituted compounds is illustrated. KEY WORDS 13C NMR Methoxycoumarins Citropten Limettin 13C-1H coupling constant Peri-proximity effects
View More
Shanghai united Scientific Co.,Ltd.
Contact:+86-21-53535353
Address:28F No.900 huaihai Road Shanghai China
website:http://www.greenutra.cn
Contact:0086-411-39553357
Address:No. 7-1-1802, Huizhi Garden,Ocean Square,Dalian, 116033, China
Allright GC (Jinan) Biotechnology Ltd.
website:https://www.argcbiotech.com/
Contact:86-18405413579-
Address: No.27566 of Jingshiroad, Huaiyin District, Jinan City(250011), Shandong Province, China.
Shandong Ailitong New Material Co.,Ltd
Contact:+86-536-3226266
Address:zhongjia village, putong town , qingzhou city,Shandong Province,China
JIANGXI AIFEIMU TECHNOLOGY CO.，LTD
Contact:+86-570-6040289
Address:FINECHEMICAL PARK,ZIBU TOWN,WANNIAN COUNTY,JIANGXI PROV.,CHINA,ZIP
Doi:10.1002/chem.200701357
(2008)Doi:10.1007/BF00629255
(1962)Doi:10.1002/ejoc.200600727
(2007)Doi:10.1248/cpb.56.1428
(2008)Doi:10.1016/j.jphotobiol.2016.10.027
(2016)Doi:10.1016/S0957-4166(00)86349-1
(1990)
