The reactivity of wheat straw soda lignin ( WSSL ) can be improved by demethylation modification.
麥草 堿木素在堿催化下經脫甲基改性可提高其反應活性.
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Benzbromarone was synthesized from salicylaldehyde by condensation with chloroacetone, reduction, acylation, demethylation and bromination overall yield.
以水楊醛為原料,經縮合 、 還原 、 ?；?、 脫甲基、溴化反應制得苯溴馬隆,總收率40.6%.
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The synthesis of naloxone was improved and the method for O - demethylation was investigated.
改進了納洛酮的合成工藝,尤其探討了去氧甲基的方法.
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