One-Pot Synthesis of 3-Arylquinazoline-2,4(1H,3H)-dithiones by the Reaction of 2-Lithiophenyl Isothiocyanates with Aryl Isothiocyanates
作者:Kazuhiro Kobayashi、Yuki Yokoi、Hisatoshi Konishi
DOI:10.1055/s-0030-1260016
日期:2011.5
synthesized in satisfactory yields from 2-bromophenyl isothiocyanates in one pot via generation of the corresponding 2-lithiophenyl isothiocyanates by bromine-lithium exchange with butyllithium followed by treatment with aryl isothiocyanates. quinazoline-2,4(1H,3H)-dithiones - 2-lithiophenyl isothiocyanates - 2-bromophenyl isothiocyanates - aryl isothiocyanates - benzothioamides
一锅中由2-溴苯基异硫氰酸酯通过溴-锂与丁基锂的交换生成相应的2-硫代苯基异硫氰酸酯,然后用芳基处理,以令人满意的收率合成了3-芳基喹唑啉-2,4(1 H,3 H)-二硫酮异硫氰酸酯。 喹唑啉-2,4(1 H,3 H)-二硫酮-2-异硫氰酸异硫氰酸酯酯-2-异硫氰酸异溴苯基酯-异硫氰酸芳基酯-苯并硫代酰胺