dihydropyrimidinethiones through FeCl3∙6H2O/TMSBr-catalyzed three-component cyclocondensation under microwave irradiation. This approach features high yields, broad substrate scope, short reaction time, mild reaction conditions, operational simplicity and easy work-up, thus affording a versatile method for the synthesis of dihydropyrimidinones and dihydropyrimidinethiones.
已开发出一种高效实用的方案,通过 FeCl3∙6H2O/TMSBr 催化的微波辐射下的三组分环缩合反应合成二氢
嘧啶酮和二氢
嘧啶硫酮。该方法具有产率高、底物范围广、反应时间短、反应条件温和、操作简单、易于后处理等特点,为合成二氢
嘧啶酮和二氢
嘧啶硫酮提供了一种通用的方法。