for the synthesis of a variety of carborane-functionalized molecules. With 1-Li-2-OTf-o-C2B10H10 as the precursor, o-carboryne undergoes an efficient [4 + 2] cycloaddition with various conjugated enynes, followed by a subsequent [2 + 2] cycloaddition at room temperature, generating a series of carborane-fused tricyclo[6.4.0.02,7]dodeca-2,12-dienes in moderate to high isolated yields. This reaction is
邻碳炔(1,2-脱氢邻碳
硼烷)是一种非常有用的合成子,可用于合成各种碳
硼烷官能化分子。以 1-Li-2-OTf- o -C 2 B 10 H 10为前驱体,邻碳
硼炔与各种共轭烯炔进行有效的 [4 + 2] 环加成,随后在室温下进行 [2 + 2] 环加成温度下,产生一系列碳
硼烷稠合的
三环[6.4.0.0 2,7 ]十二-2,12-二烯,分离产率中等至较高。该反应与许多官能团相容,底物范围广泛。涉及反应性碳
硼烷稠合 1,2-环
己二烯中间体,该结果得到了实验结果和 DFT 计算的支持。该协议为构建复杂的碳
硼烷官能化
三环化合物提供了一种便捷的策略。