Polyethers of cinnamaldehyde acetal. Part 1: Williamson etherification of 1,n-dibromoalkanes with methyl 4,6-O-cinnamylidene-α-d-glucopyranoside
| Autor: | Piotr Markowski, Sylwia Kukowka, Jolanta Maślińska-Solich |
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| Rok vydání: | 2008 |
| Předmět: |
Condensation polymer
Polymers and Plastics General Chemical Engineering Acetal General Chemistry Carbon-13 NMR Biochemistry Interfacial polymerization Cinnamaldehyde Catalysis chemistry.chemical_compound chemistry Yield (chemistry) Polymer chemistry Materials Chemistry Environmental Chemistry Butyl acetate |
| Zdroj: | Reactive and Functional Polymers. 68:544-556 |
| ISSN: | 1381-5148 |
| DOI: | 10.1016/j.reactfunctpolym.2007.10.022 |
| Popis: | A series of aliphatic (C 4 –C 12 ) diethers of methyl 4,6- O -cinnamylidene-α- d -glucopyranoside ( 1 ) were prepared as model compounds. Polycondensation of 1 and 1, n -dibromoalkanes ( 2 ) catalyzed by K 2 CO 3 /KI or KOH/phase-transfer catalyst systems was performed in solvents (DMF/butyl acetate, DMSO). Reactions carried out in the presence of KOH/TBAC or KOH/18-crown-6 yield the complex mixture of products due to side reactions. IR, 1 H and 13 C NMR and ESI-MS were used to study the details of the polymer structure. |
| Databáze: | OpenAIRE |
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