Synthesis and reactions of a poly(methacrylate) from an optically active amino alcohol
โ Scribed by Fumio Sanda; Emiko Koyama; Takeshi Endo
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 132 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0887-624X
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โฆ Synopsis
Synthesis and radical polymerization of a novel optically active methacrylate, (S)-2-tert-butoxycarbonylamino-3-phenylpropyl methacrylate (MA-F-BOC), were examined. MA-F-BOC was synthesized from methacrylic acid and N-protected (L)-phenylalaninol. Radical polymerization of MA-F-BOC quantitatively afforded the corresponding polymethacrylate with a relatively high molecular weight. Radical copolymerizations of MA-F-BOC were carried out with styrene and acrylamide to afford the copolymers. Radical polymerization of MA-F-BOC in the presence of n-butanethiol afforded the oligomers, whose degrees of polymerizations were 3.3-8.0. The BOC group was completely cloven with HBr to afford the corresponding optically active polymeric amine quantitatively.
๐ SIMILAR VOLUMES
Polycondensations of dicarboxylic acids with diols having amide moieties derived from optically active amino alcohols were carried out. Polymers with M V n s 8,700- 17,400 were obtained by the polycondensations using 1.2 eq. of 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide hydrochloride (EDCrHCl) i
## COMMUNICATIONS (595 nm, there is no exciton splitting), is 105, much higher than the value of around 3 shown by the simpler metal Schiff base complexes studied previously.[26b, 2 9 \* 301