Author's Organization：Rikagaku Kenkyusho (The Institute of Physical Chemical Research) Rikagaku Kenkyusho (The Institute of Physical Chemical Research) Rikagaku Kenkyusho (The Institute of Physical Chemical Research)
The nitration of methyl dehydroabietate derivatives having a hydroxyl and methoxyl group as in methyl 12-hydroxy-dehydroabietate and methyl 12-methoxy-dehydroabietate gave only 11-substituted compound. However, methyl 12-bromo-dehydroabietate was nitrated in different behavior and gave more complex result.
