prepared efficiently in three steps, from 3,5-dimethoxybenzyl bromide via rhodium-catalyzed direct carbonylation to 3,5-dimethoxyphenylacetic acid followed by successive o-formylation and oxidation. Isocoumarins related to agrimonolide and achlisocoumarin 1 were prepared in single step by condensation of the homophthalic acid with appropriate acid chlorides.
从3,5-二甲氧基苄基
溴经
铑催化的直接羰基化反应到3,5-二
甲氧基苯乙酸,然后依次进行邻甲酰化和氧化反应,可以分三步有效地制备3,5-二甲氧基高
邻苯二甲酸。通过将
间苯二甲酸与适当的酰
氯缩合,一步制备与农单内酯和阿奇
香豆素1有关的异
香豆素。