| abstract |
The present invention provides an inexpensive and simple novel ester preparation process by carbonylation of ether. First, a) adding an ether having 3 to 30 carbon atoms, b) adding a phosphine ligand and a compound containing Pd, or Pd and phosphine coordination. A process comprising: adding a complex comprising a child; c) supplying CO; and d) heating the reaction mixture to convert the ether, wherein the phosphine ligand is And a compound represented by formula (I). [M and n are each independently 0 or 1; R1 to R4 are each independently alkyl, cycloalkyl, heterocycloalkyl, aryl or heteroaryl, at least one of which is a heteroaryl group] Figure] None |