𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Dihydro-1,3-oxazines. XII. The oxazine α-carbanion-ketenimine rearrangement.

✍ Scribed by A.I. Meyers; Elizabeth M. Smith


Publisher
Elsevier Science
Year
1970
Tongue
French
Weight
203 KB
Volume
11
Category
Article
ISSN
0040-4039

No coin nor oath required. For personal study only.

✦ Synopsis


The reaction of metallated Z-methyl (A) and E-benzyl e) dihydro-1,3-oxazines with electrophilic reagents (e.g. n-amyl iodide) producing alkylated derivatives (j and 2) which ultimately lead to aldehydes Q and 8) has been recently reported. 2 However, when the 2-


📜 SIMILAR VOLUMES


1,2-oxazine chemistry. V—vicinal, allyli
✍ F. G. Riddell; H. Labaziewicz 📂 Article 📅 1974 🏛 John Wiley and Sons 🌐 English ⚖ 163 KB

## 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^ carbo

5,6-Dihydro-4H - 1,3-oxazine und γ-Amino
✍ Ulrich Schöllkopf; Reinhard Jentsch 📂 Article 📅 1973 🏛 John Wiley and Sons 🌐 English ⚖ 310 KB 👁 1 views

Die Verbindung ergab zufriedenstellende Werte bei der C.H-Analyse und Molekulargewichtsbestimmung (massenspektroskopisch). [9] G. PIinke u. W Henne, unveroffentlichte Resultate. [lo] Vorlaufer dieser Umlagerung sind bekannt ; siehe z. B. S. Masa-

Synthesis of γ-hydroxy-α-amino acids by
✍ Alberto Avenoza; Carlos Cativiela; Jesús M. Peregrina 📂 Article 📅 1994 🏛 Elsevier Science 🌐 French ⚖ 531 KB

The amide group of y&unsaturated amino acids can be used for the preparation of yhydroxya-amino acids. Product 2, which is easily obtained by hydrolysis of the spiro-oxazoloneadduct formed in the Diels-Alder reaction between (Z)-2-phenyl-4-benzylidene-5(4H)-oxaxolone 1 and 1,3butadiene. was converte