Synthesis of Alkylene Carbonates using a Metal Halides Complex containing Pyridine Ligands

摘要

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.