作者:Jin Xu、Haishan Wang、Mui Mui Sim
DOI:10.1081/scc-120021998
日期:2003.1.8
2,4,6-tris(Methoxymethoxy)acetophenone (1) was first mono-alkylated with 3-methylbut-2-enyl bromide to yield 5-methyl-1-(2,4,6-trimethoxymethoxyphenyl)hex-4-en-1-one (2): The base catalyzed aldol condensation of 2 and substituted benzaldehydes gave chalcones 3 in good yields. One pot cyclization and deprotection of the chalcones were accomplished in refluxing 4N HCl inMeOH to afford (+/-)-C-3-prenylated flavanones.