Use of tris-(dipivalomethanato)europium as a shift reagent in the identification of 3-H-pyrano[3,2-f]quinolin-3-one
โ Scribed by Kenneth J. Liska; Allison F. Fentiman Jr.; Rodger L. Foltz
- Publisher
- Elsevier Science
- Year
- 1970
- Tongue
- French
- Weight
- 174 KB
- Volume
- 11
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
โฆ Synopsis
We wish to report the synthesis and re-identification of 3-~-pytano[3,2-~qulnoline-3-one (I), and to correct the data on physical properties given for I by Dep and Gomamil. We also wish to describe the use of the recently reported2 &&-(dipivalomethanato)europiun, Eu(DPM)~, as a shift reagent in the NMR spectroscopic study of I.
๐ SIMILAR VOLUMES
A simple, rapid, and quantitative NMR method was developed for the determination of the ratio of the diastereoisomers present in 7-chloro-3,3a-dihydro-2-methyl-2H, 9H-isoxazolo(3,2-b)(1,3)benzoxazin-9-one (I). Deuterated tris(1,1,1,2,2,3,3heptafluoro-7,7-dimethyl-4,6-octanedionato)europium I11 shift