1-Methyl-1-vinylsilacyclobutane (1) and 1-methyl-1-(prop-2-enyl)silacyclobutane (2) undergo rapid and high yielding cross-coupling with aromatic halides. Many different substituents and patterns on the aromatic moiety are tolerated. All reactions can be run at room temperature and require the presence of tetrabutylammonium fluoride and Pd(dba)2. Both silacyclobutanes can be made in one step from commercially available precursors.
1-甲基-
1-乙烯基
硅环丁烷(1)和1-甲基-1-(丙-2-烯基)
硅环丁烷(2)与芳香卤化物发生快速且高产率的交叉偶联反应。对芳香基的许多不同取代基和结构模式均可耐受。所有反应均可在室温下进行,并需要四丁基
氟铵和Pd(dba)2的存在。这两种
硅环丁烷均可通过商业可得的前体在一步骤中合成。