作者:Krzysztof Wojciechowski、Robert Bujok、Zbigniew Wróbel
DOI:10.1055/s-0031-1291044
日期:2012.6
Reaction of α-chloroalkyl ketones with 1,3-dinitrobenzenes provides 2,4-dinitrobenzyl ketones which when reduced with tin(II) chloride form 6-nitro derivatives of 1-hydroxyindoles. An alternative approach is the condensation of 2,4- and 2,6-dinitrotoluenes with diethyl oxalate or ethyl trifluoroacetate provides dinitrobenzyl ketones which leads after reduction with tin(II) chloride to nitro derivatives
α-氯代烷基酮与 1,3-二硝基苯反应生成 2,4-二硝基苄基酮,当用氯化锡 (II) 还原时形成 1-羟基吲哚的 6-硝基衍生物。另一种方法是将 2,4- 和 2,6- 二硝基甲苯与草酸二乙酯或三氟乙酸乙酯缩合得到二硝基苄基酮,在用氯化锡 (II) 还原后生成 1-羟基吲哚-2-羧酸酯或 1- 的硝基衍生物。羟基-2-(三氟甲基)吲哚,分别。