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13C NMR spectrum of coumarin

✍ Scribed by O. A. Subbotin; P. I. Zakharov; V. A. Zagorevskii; D. A. Zykov

Book ID
112373270
Publisher
Springer
Year
1975
Tongue
English
Weight
269 KB
Volume
11
Category
Article
ISSN
0009-3130

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📜 SIMILAR VOLUMES

13C NMR of coumarins. III—Simple coumari
13C NMR of coumarins. III—Simple coumarins
✍ F. A. Macias; G. M. Massanet; F. Rodríguez-Luis; J. Salvá 📂 Article 📅 1989 🏛 John Wiley and Sons 🌐 English ⚖ 236 KB

13C NMR data for several simple coumarins are reported. The ysvn effect of a 5-methoxy substituent on the C-4 chemical shift was observed and measured. The effects of an 8-iodo substituent on the chemical shifts of the carbons of the coumarinic skeleton are discussed.

13C NMR of coumarins. V—3-prenylated cou
13C NMR of coumarins. V—3-prenylated coumarins
✍ F. A. Macias; R. Hernández-Galán; G. M. Massanet; F. Rodriguezluis; M. Vasquez; 📂 Article 📅 1990 🏛 John Wiley and Sons 🌐 English ⚖ 386 KB

## Abstract ^13^C NMR data of nineteen coumarins, twelve of which bear a prenyl (isoprenoid) side‐chain at C‐3, are reported and compared with those of the C‐3 unsubstituted compounds. Unlike the linear isomers, no γ‐effect is observed in the corresponding angular derivatives; this is proposed as s

13C NMR of coumarins. IV—Furanocoumarins
13C NMR of coumarins. IV—Furanocoumarins
✍ F. A. Macias; G. M. Massanet; F. Rodriguez-Luis; J. Salvá 📂 Article 📅 1990 🏛 John Wiley and Sons 🌐 English ⚖ 304 KB

## Abstract ^13^C NMR data for several linear furanocoumarins are reported. The β, γ~syn~ and δ effects of a 5‐oxygenated function on the coumarinic skeleton were measured. A spectroscopic criterion for distinguishing between C‐5 and C‐8 oxygenated, between C‐5 oxygenated, C‐8 alkylated and C‐5 alk

13C-NMR Spectrum of Ketene
13C-NMR Spectrum of Ketene
✍ Priv.-Doz. Dr. Joachim Firl; Dr. Wolfgang Runge 📂 Article 📅 1973 🏛 John Wiley and Sons 🌐 English ⚖ 230 KB 👁 2 views
The 13C NMR spectrum of coumarandione
The 13C NMR spectrum of coumarandione
✍ Tammo Winkler; Pier Giorgio Ferrini; Georges Haas 📂 Article 📅 1979 🏛 John Wiley and Sons 🌐 English ⚖ 147 KB

## Abstract A re‐examination of the ^13^C NMR spectra of coumarandione and isatin with the aid of proton‐coupled ^13^C NMR spectra and selective proton decoupling experiments is reported.