First Aldehyde-Functionalized Poly(2-oxazoline)s for Chemoselective Ligation

Autor: Robert Luxenhofer, Christian Taubmann, Rainer Jordan, Sonia Cesana
Rok vydání: 2005
Předmět:
Zdroj: Macromolecular Bioscience. 5:603-612
ISSN: 1616-5195
1616-5187
DOI: 10.1002/mabi.200500059
Popis: A protected aldehyde-functionalized 2-oxazoline, 2-[3-(1,3)-dioxolan-2-ylpropyl]-2-oxazoline (DPOx), was synthesized from commercially available compounds in high yields. The polymerization of DPOx with different initiators proceeds via a living iionic mechanism; thus, the polymers were of low polydispersity and the degree of polymerization could be precisely adjusted. Copolymerization with 2-methyl-2-oxazoline gave water-soluble statistical copolymers. Hydrolysis of the homo- and copolymers resulted in well-defined aldehyde-bearing poly(2-oxazo-line)s. The aldehyde side functions reacted quantitatively with an amino-oxy compound to form the corresponding oxime.
Databáze: OpenAIRE