1,2-oxazine chemistry. V—vicinal, allylic and homoallylic coupling constants in the 3,6-dihydro-1,2-oxazine ring

✍ Scribed by F. G. Riddell; H. Labaziewicz

• Publisher: John Wiley and Sons
• Year: 1974
• Tongue: English
• Weight: 163 KB
• Volume: 6
• Category: Article
• ISSN: 0749-1581
• DOI: 10.1002/mrc.1270061110

✦ Synopsis

Abstract

The ^1^H NMR spectra of thirteen dihydro‐1,2‐oxazine derivatives are reported. Spin decoupling allows analysis of the spectra, features of which include homoallylic couplings of +2 to +2·5 Hz, allylic couplings of −1·5 to −1·7 Hz and vicinal couplings across sp^2^ to sp^3^ carbon–carbon bonds of +2·9 to +3·7 Hz.