High-content Dewar benzene polymers and sterically congested [n]-ladderanes have been synthesized from [4π s +2π s ] cyclobutadienemetal complex cycloaddition chemistry. In the former case, tetramethylcyclobutadiene-AlCl 3 is reacted with an acetylene-containing precursor polymer to yield > 95% Dewar benzene incorporation. In the latter case, [n]-ladderanes containing up to thirteen rings are prepared
已经从 [4π s +2π s ]
环丁二烯金属配合物环加成
化学合成了高含量
杜瓦苯聚合物和空间拥挤的 [n]-ladderanes。在前一种情况下,四
甲基环丁二烯-AlCl 3 与含
乙炔的前体聚合物反应以产生> 95% 的
杜瓦苯结合。在后一种情况下,含有多达 13 个环的 [n]-梯烷是通过一锅法从
2-丁炔制备的。