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Carbonic acidand

Carbonic acid and its derivatives

1. Carbonyl dichloride

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2. urea

3. Alkyl Chloroformates and Carbamates (Urethanes)

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Alkyl Chloroformates react with ammonia or amines to

yield compounds called Carbamates or Urethanes

for example, benzyl chloroformat is used as protecting group in the synthesis of peptides

and protein.

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The importance of carbanoic acid

Carbon dioxide forms carbonic acid (H2CO3) in water (or blood).

Carbonic acid is in dynamic equilibrium with hydrogen ion (H+) and bicarbonate

ion (HCO3-).

The HCO3- removes excess H+ in the blood by forming H2CO3.

If blood is low in H+, the H2CO3 dissociates to restore H+ concentrations.

Carbonic acid is a buffer that maintains blood pH near neutral.

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