Catalytic synthesis of methyl acrylate from acetylene, carbon monoxide and methanol under pressure

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Abstract
Optimum reaction conditions for this synthesis have been evolved. The best catalyst used was nickel iodide supported on silica (Ni/SiO2 50:50). Besides methyl acrylate, the products obtained were acrylic acid, acetaldehyde, liquid hydrocarbons (acetylene polymers), CO2, ethylene, ethane and a trace of methane, and hydrogen. In addition resinous products were obtained (probably polymerised methyl acrylate) which led to low conversions and poor material balances. Possible mechanisms to account for the products are suggested.