Synthesis of Arylnaphthalene Lignan Scaffold by Gold-Catalyzed Intramolecular Sequential Electrophilic Addition and Benzannulation
作者:Vanajakshi Gudla、Rengarajan Balamurugan
DOI:10.1021/jo201918d
日期:2011.12.16
an arylnaphthalene lignan scaffold in high yields is presented. It involves a sequential intramolecular electrophilic attack of carbonyl on arylalkyne followed by benzannulation catalyzed by gold salt. AuCl3 in combination with AgSbF6 works better to effect this transformation. Selected products have been converted into arylnaphthalene lactone natural products such as justicidin E, taiwanin C, and
提出了一种以高产率产生包含芳基萘木脂体骨架的化合物的分子内方法。它涉及羰基对芳基炔的连续分子内亲电攻击,然后由金盐催化苯环化。AuCl 3与AgSbF 6结合使用效果更好。某些产品已被转化为芳基萘内酯天然产品,例如司法正义素E,黄花青素C和逆转录调节素B。