Invention Grant
US06407264B2 Synthesis of alkylene carbonates using a catalyst system comprising metal halide and pyridine or pyridine derivative
失效
使用包含金属卤化物和吡啶或吡啶衍生物的催化剂体系合成碳酸亚烷基酯
- Patent Title: Synthesis of alkylene carbonates using a catalyst system comprising metal halide and pyridine or pyridine derivative
- Patent Title (中): 使用包含金属卤化物和吡啶或吡啶衍生物的催化剂体系合成碳酸亚烷基酯
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Application No.: US09780235Application Date: 2001-02-09
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Publication No.: US06407264B2Publication Date: 2002-06-18
- Inventor: Hoon Sik Kim , Jai Jun Kim , Byung Gwon Lee , Hong Gon Kim
- Applicant: Hoon Sik Kim , Jai Jun Kim , Byung Gwon Lee , Hong Gon Kim
- Priority: KR2000-6402 20000211
- Main IPC: C07D31710
- IPC: C07D31710
Abstract:
The present invention relates to a method to prepare alkylene carbonate of the formula (1) wherein, R1 and R2 are each independently H; C1-C4 alkyl or phenyl group; which method characterized by reacting alkylene oxide with carbon dioxide in the presence of a catalyst system comprising a) metal halide [MXm] and b) pyridine or pyridine derivative [Py], wherein Py is selected from a group of pyridines; M is a metal atom selected from the group consisting of Zn, Fe, Mn, Pb and In; X is a halogen selected from the group consisting of Cl, Br and I; and m is 2 or 3.
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