作者:Pierre-Yves Renard、Yvan Six、Jean-Yves Lallemand
DOI:10.1016/s0040-4039(97)01507-4
日期:1997.9
New examples of Diels-Alder reactions involving 1,3-disubstituted 1,3-dienylboronates are reported. Various dienophiles were tested. With methyl acrylate as the dienophile, lower reaction temperature, shorter reaction time and better stereocontrol have been reached with the use of a steochiometric amount of Lewis acid EtAlCl2.
报道了涉及1,3-二取代的1,3-二烯基硼酸酯的Diels-Alder反应的新实例。测试了各种双亲物。以丙烯酸甲酯作为双亲物,通过使用化学计量的路易斯酸EtAlCl 2可以达到较低的反应温度,较短的反应时间和更好的立体控制。