𝔖 Bobbio Scriptorium
✦   LIBER   ✦

13C nuclear magnetic resonance studies on some substituted isoxazoles

✍ Scribed by James Gainer; Graham A. Howarth; William Hoyle; Stanley M. Roberts


Publisher
John Wiley and Sons
Year
1976
Tongue
English
Weight
124 KB
Volume
8
Category
Article
ISSN
0749-1581

No coin nor oath required. For personal study only.

✦ Synopsis


Abstract

^13^C n.m.r. spectra of some substituted isoxazoles have been examined to ascertain the reactive site in the metallation of 4‐substituted 3,5‐dimethylisoxazoles. The results obtained indicate that metallation occurred exclusively at the C‐5 methyl.


📜 SIMILAR VOLUMES


Nuclear magnetic resonance III-13C NMR s
✍ K. M. Biswas; R. N. Dhara; H. Mallik; S. Roy 📂 Article 📅 1985 🏛 John Wiley and Sons 🌐 English ⚖ 208 KB 👁 1 views

## Abstract ^13^C signal assignments of 3‐ethyl‐1‐methylindole (**1**), 1‐methyl‐3‐phenylindole (**3**), 1,3‐dimethyl‐2‐phenylindole (**5**), 1‐methyl‐2,3‐diphenylindole (**10**), 1,5‐dimethyl‐2,3‐diphenylindole (**12**), 7‐methoxy‐2,3‐diphenylindole (**13**), 7‐methoxy‐4‐methyl‐2,3‐diphenylindole

Carbon-13 nuclear magnetic resonance stu
✍ Frank F. Molock; David W. Boykin 📂 Article 📅 1982 🏛 John Wiley and Sons 🌐 English ⚖ 431 KB 👁 1 views

## Abstract Carbon‐13 NMR chemical shifts are reported for six angular and one linear dichloropyridoquinolines in CDCl~3~. The chemical shift assignments have been made using model compounds, fully coupled spectra, selective proton decoupling and results from lanthanide shift studies. Chlorine subs

13C nuclear magnetic resonance study of
✍ Georg Kallinowski; Walter Vogt 📂 Article 📅 1989 🏛 John Wiley and Sons 🌐 English ⚖ 345 KB 👁 1 views

C chemical shifts and ''P,l'C spin-spin coupling constants are reported for six model phosphinates and eight synthetic phosphinolipids. The complex spectra of the synthetic phosphinolipids could be assigned from increments and couplings derived from the model compounds. Based on these investigations

13C nuclear magnetic resonance studies o
✍ Torbjörn Drakenberg; Jean M. Sommer; Roland Jost 📂 Article 📅 1976 🏛 John Wiley and Sons 🌐 English ⚖ 348 KB 👁 1 views

## Abstract The barrier to internal rotation in a series of __p__‐substituted acetophenones has been determined by means of low temperature carbon‐13 n.m.r. and total bandshape analysis, resulting in: Δ__G__ = 5·4 ± 0·1 kcal mol^−1^ (22·4 ± 0·4 kJ mol^−1^) for the unsubstituted acetophenone. The su

13C nuclear magnetic resonance studies o
✍ V. S. Parmar; Sunil Sharma; J. S. Rathore; Meenu Garg; Sandhya Gupta; Sunita Mal 📂 Article 📅 1990 🏛 John Wiley and Sons 🌐 English ⚖ 350 KB

## Abstract The ^13^C NMR spectra of 48 differently substituted chalcones (1,3‐diphenylprop‐2 enones) have been recorded and the results are discussed. The data will be useful in the identification of new/natural chalcones.

Carbon-13 nuclear magnetic resonance spe
✍ A. J. de Hoog 📂 Article 📅 1974 🏛 John Wiley and Sons 🌐 English ⚖ 314 KB

## Abstract Fourier transform carbon‐13 nuclear magnetic resonance spectra have been obtained and interpreted for some 2‐substituted tetrahydropyrans. The effects of the substituents on α, β, γ and δ‐carbon atoms are discussed. Using suitable reference compounds the γ‐parameter can be used for quan