How is 2-Thienylacetonitrile (CAS: 20893-30-5) typically synthesized?

2-Thienylacetonitrile is commonly synthesized via the reaction of thiophene and acetonitrile in the presence of a base. This method involves treating thiophene with acetonitrile in an organic solvent such as toluene or DMF with a base like potassium tert-butoxide. The reaction is exothermic and should be carried out under stirring conditions. The yield is typically around 70-80%, with good selectivity for the desired product.