Total Synthesis of the Biologically Active, Naturally Occurring 3,4-Dibromo-5-[2-bromo-3,4-dihydroxy-6-(methoxymethyl)benzyl]benzene-1,2-diol and Regioselective O-Demethylation of Aryl Methyl Ethers
作者:Yusuf Akbaba、Halis Türker Balaydın、Süleyman Göksu、Ertan Şahin、Abdullah Menzek
DOI:10.1002/hlca.200900300
日期:——
4‐Dibromo‐5‐[2‐bromo‐3,4‐dihydroxy‐6‐(methoxymethyl)benzyl]benzene‐1,2‐diol (2), a natural product, has been synthesized for the first time starting from (3‐bromo‐4,5‐dimethoxyphenyl)methanol (5) in five steps and with an overall yield of 34%. The reaction of some methoxymethyl‐substituted aryl methyl ethers with BBr3, followed by the addition of MeOH, afforded the corresponding methoxymethyl‐substituted arylphenols
天然产物3,4-二溴-5- [2-溴-3,4-二羟基-6-(甲氧基甲基)苄基]苯1,2-二醇(2)首次从(3-溴-4,5-二甲氧基苯基)甲醇(5)分五个步骤,总产率为34%。一些甲氧基甲基取代的芳基甲基醚与BBr 3的反应,然后添加MeOH,可以高收率得到相应的甲氧基甲基取代的芳基酚。