Domino Michael–O-alkylation reaction: one-pot synthesis of 2,4-diacylhydrofuran derivatives and its application to antitumor naphthofuran synthesis
作者:Hisahiro Hagiwara、Kouji Sato、Daisuke Nishino、Takashi Hoshi、Toshio Suzuki、Masayoshi Ando
DOI:10.1039/b107180g
日期:2001.11.15
The reaction of enolates of 1,3-dicarbonyl compounds with α-halo-α,β-unsaturated carbonyl compounds affords 2,4-diacyldihydrofuran derivatives in the presence of DBU in THF. Chemical manganese dioxide oxidation of the hydrofurans leads to 2,4-diacylfuran derivatives. Application of the protocol enables short-step syntheses of antitumor naphthofuran natural products.
在THF中,使用DBU作为催化剂,1,3-二羰基化合物的烯醇盐与α-卤代-α,β-不饱和羰基化合物的反应生成2,4-二酰基二氢呋喃衍生物。通过化学二氧化锰氧化这些二氢呋喃,可以得到2,4-二酰基呋喃衍生物。这一方法的应用使得抗肿瘤的萘呋喃天然产物能够通过简短的步骤合成。