Some grignard reagents react with ethyl orthoformate followed by acidic hydrolysis to give aldehydes. Propose mechanisms for the two steps in this synthesis. H-underset(O-CH_(2)CH_(3))underset(|)overset(O-CH_(2)CH_(3))overset(|)(C)-O-CH_(2)CH_(3)+R-Mg-X rarr R-underset(H)underset(|)overset(O-CH_(2)CH_(3))overset(|)(C)-O-CH_(2)CH_(3) overset(H_(3)O^(+))(rarr)R-overset(O)overset(||)(C)-H ethyl orthofomate""acetal"" aldehyde

Some grignard reagents react with ethyl orthoformate followed by acidi

1.	Some grignard reagents react with ethyl orthoformate followed by acidic hydrolysis to give aldehydes. Propose mechanisms for the two steps in this synthesis. H-underset(O-CH_(2)CH_(3))underset(\|)overset(O-CH_(2)CH_(3))overset(\|)(C)-O-CH_(2)CH_(3)+R-Mg-X rarr R-underset(H)underset(\|)overset(O-CH_(2)CH_(3))overset(\|)(C)-O-CH_(2)CH_(3) overset(H_(3)O^(+))(rarr)R-overset(O)overset(\|\|)(C)-H ethyl orthofomate""acetal"" aldehyde
Answer» SOLUTION : R —Mg—X