Formation of nitriles from the corresponding aldehydes is an important functional group transformation. 1., , and Many methods involve the initial conversion of aldehydes to aldoximes, which are subjected to dehydration to give nitriles. 2., , , , , and Direct conversion of aldehydes into nitriles without isolation of nitrogen-containing intermediates has also been explored. 3., , , , , , , and In most cases, aromatic aldehydes are preferably converted to ...