Highly Efficient Synthesis of Multi-Substituted Allenes from Propargyl Acetates and Organoaluminum Reagents Mediated by Palladium
作者:Qinghan Li、Zhen Zhang、Xuebei Shao、Gang Zhang、Xinying Li
DOI:10.1055/s-0036-1588177
日期:2017.8
The process was simple and easily performed, which offers an efficient method to synthesize the multi-substituted allene derivatives. A simple and mild catalytic SN2′ substitution reaction of propargyl acetates with organoaluminum reagents is reported. The SN2′ substitution reaction of propargyl acetates with organoaluminum reagents mediated by Pd(PhP3)2Cl2 (1 mol%)/PPh3 (2 mol%)/K2CO3 in tetrahydrofuran
摘要 一种简单和温和的催化小号Ñ报道与有机铝试剂炔丙基乙酸酯的2'取代反应。Pd(PhP 3)2 Cl 2(1 mol%)/ PPh 3(2 mol%)/ K 2 CO 3在四氢呋喃中于60°C介导的乙酸丙炔酯与有机铝试剂的S N 2'取代反应3– 4小时以高产率(高达99%)以良好的产率(高达94%)提供了相应的多取代的烯。该方法简单易行,为合成多取代的丙二烯衍生物提供了一种有效的方法。 一种简单和温和的催化小号Ñ报道与有机铝试剂炔丙基乙酸酯的2'取代反应。Pd(PhP 3)2 Cl 2(1 mol%)/ PPh 3(2 mol%)/ K 2 CO 3在四氢呋喃中于60°C介导的乙酸丙炔酯与有机铝试剂的S N 2'取代反应3– 4小时以高产率(高达99%)以良好的产率(高达94%)提供了相应的多取代的烯。该方法简单易行,为合成多取代的丙二烯衍生物提供了一种有效的方法。