Page 40 - phytochemistry general program
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( - ) Quinine
Quinine occurs as white crystalline powder .1
It is levorotary, gives quinidine (d-isomer) when warmed with KOH in amyl .2
alcohol.
Quinine is diacidic bases due to presence of 2N atoms), .3
They form two types of salts. .4
1- Neutral salts (Quinine sulphate), insoluble in water
2-Acidic salts (Quinine bisulphate),soluble in water. .1
The alkaloids decolourizes both solution of KMnO4 and bromine water solution,
due to the presence of unsaturated vinyl group.
( + ) Quinidine
dextro isomer of quinine.
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