| 摘要 |
PROBLEM TO BE SOLVED: To economically produce the subject industrially useful compound by feeding water so that a specific Broensted acid in the reactional system is kept at a specific concentration and reacting propyne, etc., with carbon monoxide and methanol using a carbonylating catalyst containing the Broensted acid. SOLUTION: Water in an amount of 0.5-5.0 wt.% based on the total weight of a reactional mixture is preferably fed so that the concentration of (iii) a Broensted acid in the reactional system is kept at 1-30 wt.% and (A) propyne and/or an arene, (B) carbon monoxide and (C) methanol are reacted in the presence of (D) a catalyst system containing (i) a supply source of an atom or an ion of a metal belonging to group VIII of the periodic table of elements [e.g. tetrakis(triphenylphosphine)platinum], (ii) a ligand selected from an organophosphorus compound, an organoarsenic compound and an organoantimony compound (e.g. triphenylphosphine) and (iii) methacrylic acid which is the Broensted acid to afford the objective compound. |
