Question

What is steaphen reaction? ​

Answer 1

Stephen aldehyde synthesis, a named reaction in chemistry, was invented by Henry Stephen. This reaction involves the preparation of aldehydes from nitriles using tin(II) chloride, hydrochloric acid and quenching the resulting iminium salt with water. During the synthesis, ammonium chloride is also produced. 

Answer 2

Stephen aldehyde synthesis, a named reaction in chemistry, was invented by Henry Stephen. This reaction involves the preparation of aldehydes from nitriles using tin(II) chloride, hydrochloric acid and quenching the resulting iminium salt with water. During the synthesis, ammonium chloride is also produced. I referred it from Wikipedia