Isomerization Polymerization of 1,3-Oxazine. I. Polymerization of Unsubstituted 5,6-Dihydro-4H-1,3-oxazine Giving Poly(N-formyltrimethylenimine) and Its Alkaline Hydrolysis of Poly(trimethylenimine)
β Scribed by Saegusa, Takeo; Nagura, Yoshitomi; Kobayashi, Shiro
- Book ID
- 123618072
- Publisher
- American Chemical Society
- Year
- 1973
- Tongue
- English
- Weight
- 462 KB
- Volume
- 6
- Category
- Article
- ISSN
- 0024-9297
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## Abstract **Summary:** The ringβopening polymerizations of 2βphenylβ5,6βdihydroβ4__H__β1,3βoxazine (PhOZI) with methyl tosylate (MeOTs) and butyl iodide (BuI) as initiators were performed in refluxing butyronitrile. Reaction kinetics under microwave irradiation was compared with conventional oil
Cycloaddition/Ring Opening of 3-Unsubstituted Cyclic Nitronates, Isoxazoline and 5,6-Dihydro-4H-1,2-oxazine N-Oxides, as Synthetic Equivalents of Functionalized Nitrile Oxides. -Treatment of 3-halo-1-nitropropane [cf. (I)] with base results in cyclization to a nitronate. Trapping with electron-rich