Efficient Preparation of 4-Iodofuran-2(5H)-ones by Iodolactonisation of 2,3-Allenoates with I2
作者:Chunling Fu、Shengming Ma
DOI:10.1002/ejoc.200500296
日期:2005.9
4-Iodofuran-2(5H)-ones were prepared, in moderate to high yields, by the facile iodolactonisation of ethyl 2,3-allenoates with I2 in aqueous MeCN by the direct participation of the carbonyl oxygen atom in the regioselective electrophilic addition of the allene moiety. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)
通过羰基氧原子直接参与区域选择性亲电加成,在 MeCN 水溶液中,通过 2,3-烯丙酸乙酯与 I2 的轻松碘内酯化,以中等至高产率制备 4-Iodofuran-2(5H)-ones。丙二烯部分。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)