oximes's Usage Examples:

According to Hantzsch the isomeric diazo hydroxides are structurally identical, and the differences in behaviour are due to stereo-chemica l relations, the isomerism being comparable with that of the oximes.

; whereas the unsymmetrical benzophenones each yield two oximes.

Thus in the case of the simple aldoximes two con R C H R C H figurations are possible, namely: andc.

HO N Aldoximes are generally obtained by the action of hydroxylamine hydrochloride on the aldehyde in presence of sodium carbonate; the oxime being then usually extracted from the solution by ether.

Both oximes and hydrazones, on boiling with dilute acid, regenerate the parent aldehyde.

Oximes >>With aldehydes and ketones it forms oximes.

Most of the azoximes are very volatile substances, sublime readily, and are easily soluble in water, alcohol and benzene.

The syn-aldoximes or treatment with acetyl chloride readily lose water and yield nitriles; the anti-aldoximes as a rule are acetylated and do not yield nitriles.

It is to be noted that the oximes of aromatic aldehydes and of unsymmetrical aromatic ketones frequently exist in isomeric forms.

The aldoximes are converted by the action of dehydrating agents into nitriles: RCH: NOH-->R C: N+H 2 0.

In order to arrive at the configuration of the stereoisomeric ketoximes, A.

R C: N+H 2 0.

In order to arrive at the configuration of the stereoisomeric ketoximes, A.

-->