How is 1-(4-methyloxazol-5-yl)ethan-1-one (CAS: 23012-19-3) typically synthesized?

1-(4-methyloxazol-5-yl)ethan-1-one (CAS: 23012-19-3) can be synthesized via the condensation of 4-methyl-5-oxazolamine with acetaldehyde using a catalytic amount of a strong acid like hydrochloric acid. The reaction is carried out under reflux conditions. The use of other catalysts such as p-toluenesulfonic acid or sulfuric acid can also be effective. The yield of the reaction is around 70-80% with good selectivity.