2-Substituted-3-acylindoles through the Palladium-Catalysed Carbonylative Cyclization of 2-Alkynyltrifluoroacetanilides with Aryl Halides and Vinyl Triflates
作者:Antonio Arcadi、Sandro Cacchi、Veronica Carnicelli、Fabio Marinelli
DOI:10.1016/s0040-4020(01)80766-3
日期:1994.1
The palladium-catalysed reaction of readily accessible 2-alkynyltrifluoroacetanilides with aryl hanides and vinyl triflates under a carbon monoxide atmosphere (1 or 7 atm) the presence of potassium carbonate produce s 2-substituted-3-acyl indoles in fair to good yield. The acidity of the nitrogen-hydrogen bond proved to be of primary importance for the success of the reaction. The methodology has been
在碳酸钾的存在下,在一氧化碳气氛(1或7 atm)下,钯易于催化的2-炔基三氟乙酰苯胺与芳基化物和乙烯基三氟甲磺酸酯的反应,可公平地以良好的收率产生s 2-取代的3-酰基吲哚。事实证明,氮氢键的酸度对于反应的成功至关重要。该方法已被用于合成普鲁瓦多林,该药物对人的术后疼痛具有镇痛作用。