作者:Stéphane Poigny、Michèle Guyot、Mohammad Samadi
DOI:10.1016/s0040-4020(98)00927-2
日期:1998.12
An efficient total synthesis of maesanin and related quinones is reported, through direct alkylation of 1,2,4,5-tetramethoxybenzene with alkylbromides, followed by oxidation with ceric ammonium nitrate (CAN) which provokes formation of the quinone and deprotection of the more hindered methyl ether in one step, to furnish the desired 2-hydroxy-5-methoxy-1,4-benzoquinones 1a-h.
据报道,通过将1,2,4,5-四甲氧基苯与烷基溴化物直接烷基化,然后用硝酸铈铵(CAN)氧化可促进醌的形成和使受阻较弱的分子脱保护,从而有效地合成了maesanin和相关的醌。一步制得甲基醚,以提供所需的2-羟基-5-甲氧基-1,4-苯醌1a-h。