Rhodium(I)-Catalysed Intramolecular [2+2+2] Cyclotrimerisations of 15-, 20- and 25-Membered Azamacrocycles: Experimental and Theoretical Mechanistic Studies
作者:Anna Dachs、Anna Torrent、Anna Roglans、Teodor Parella、Sílvia Osuna、Miquel Solà
DOI:10.1002/chem.200802548
日期:2009.5.18
Number of members makes a difference: The [2+2+2] intramolecular cyclotrimerisation of a new series of 20‐ and 25‐membered azamacrocycles catalysed by the Wilkinson's catalyst are reported (see scheme). The 20‐ and 25‐membered azamacrocycles show different reactivity. Why? Theoretical calculations give insight into the reactivity differences observed for the 20‐ and 25‐membered macrocycles.
成员的数量有所不同:据报道,由威尔金森氏催化剂催化的一系列新的20和25元氮杂大环化合物的[2 + 2 + 2]分子内环三聚反应(参见方案)。20和25元的氮杂大环化合物显示出不同的反应性。为什么?理论计算可深入了解在20和25元大环化合物上观察到的反应性差异。