Tests for detection of alkaloids

P recipitation reactions : - Precipitating reagent + neutral or slightly acidic aqueous solution of alkaloidal salts = crystalline pre...

Chemical Properties of Alkaloids

1. O xygenated & non-oxygenated alkaloids – Beside C, H & N, most alkaloids contain O – Few are oxygen-free e.g. nicotine & ...

Basicity of alkaloids

S tructure of the molecule e.g. degree of unsaturation of the heterocyclic ring. Unsaturation decreases the basicity - e.g. piperidine alk...

Function and nomencalture of alkaloids

F unctions : 1.Protective against insects & herbivores (due to bitterness & toxicity). 2.Products of detoxification in metabolic...

general knowledge about Alkaloids

Therapeutic action Group of natural products with potent physiological effects Important therapeutic agents e.g. atropine, morphine ...