*2.3. Catalytic Study*

Catalytic cyanoethylation of methanol was performed using the following procedure. First, K-MER zeolite (0.500 g), methanol (28 mmol, Merck) and acrylonitrile (7 mmol, Merck) were loaded into a 10-mL quartz vial. The vial was sealed with a silicon cap, heated (140 ◦C) and magnetically stirred (800 rpm) in a non-microwave instant heating reactor (Anton Paar's Monowave 50, Graz, Austria) for several specific heating times (0-90 min). After cooling down, the reaction solution was isolated from the solid catalyst and injected into a GC–MS (Perkin-Elmer Clarus 500 system, Massachusetts, USA) and a GC–FID (Agilent/HP 6890 GC, Califonia, USA) for identification and quantitative analysis, respectively.
