## Abstract A bicyclic pseudourea, 2,3,5,6โtetrahydroimidazo[2,1โ__b__][1,3]oxazole (1), was isolated for the first time, and its cationic and spontaneous polymerizations were examined. Both polymerizations gave poly(1,3โimidazolidinโ2โoneโ1,3โdiylethylene) (2) in high yields. The polymer is a crys
โฆ LIBER โฆ
Living ring-opening isomerization polymerization of 2,3,5,6-tetrahydroimidazo[2,1-b][1,3]oxazole with sulfonate initiators
โ Scribed by Masatoshi Miyamoto; Toshio Watanabe; Yoshiharu Kimura
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 800 KB
- Volume
- 199
- Category
- Article
- ISSN
- 1022-1352
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## Abstract Ringโopening polymerization of 2โphenylโ1,3,2โdioxaphosphorinane (a sixโmembered cyclic phosphonite, 4) has been initiated with a new catalyst system of a halobenzene and NiBr~2~. The polymerization proceeded in a living nature to produce poly(phosphinate) consisting exclusively of a โn