Catalytic reactions of pentamethylene and hexamethylene glycols over an iron oxide
✍ Scribed by Hanna Grabowska; Roman Klimkiewicz; Józef Wrzyszcz; Ludwik Syper
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- English
- Weight
- 84 KB
- Volume
- 154
- Category
- Article
- ISSN
- 1381-1169
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## Abstract **BACKGROUND:** Ethylene carbonate (EC) was synthesised via urea and ethylene glycol (EG) over zinc/iron oxide catalyst. By so doing, the by‐product, EG, generated in the process of producing dimethyl carbonate by the transesterification route was converted back to the raw material, EC.
## COMMUNICATIONS (10 mL) was added to this solution at -40°C. The reaction mixture was allowed to warm to ambient temperature, stirred for 30 min, and the products were purified by chromatography on silica using dichloromethane/pentane 1 : 1 as eluent. Compound 5 (60 mg, 3.8%) was isolated from t