Girard and Sandulesco 1 developed a method now known as the ‘Girard reaction’ for the isolation ... sex hormones from natural products. Aldehydes and ketones in the mixture are converted ...

Esters, fats and oils Esters are formed in condensation reactions and broken by hydrolysis ... and are hydrolysed by our bodies. Aldehydes and ketones are compounds with carbonyl groups that ...

We present a one-step, visible light-induced synthesis of bicyclo[1.1.1]pentane-ketone, a bioisostere for benzoyl groups that ...