Question

2 butene convert into ethanal

Answer 1

hey,

As mentioned ozonolysis is a good method but it requires an ozone generator. An equally good method is to treat the 2-butene with OsO4 (osmium tetroxide) and NaIO4 (sodium periodate). The only caveat is that OsO4 is toxic but it is used catalytically. Hope this helps.