A Regio- and Diastereoselective Platinum-Catalyzed Tandem [2+1]/[3+2] Cycloaddition Sequence
作者:Thierry Achard、Aymeric Lepronier、Yves Gimbert、Hervé Clavier、Laurent Giordano、Alphonse Tenaglia、Gérard Buono
DOI:10.1002/anie.201007992
日期:2011.4.4
Platinum complexes bearing phosphinous acids have efficiently promoted a tandem intermolecular sequence of [2+1]/[3+2] cycloaddition reactions. This process gave access to novel tricyclic systems and the cascade reactions were regio‐ and diastereoselective (see scheme; Cy=cyclohexyl). The [3+2] cycloaddition reaction was investigated further and two different alkyne partners were used.
带有次膦酸的铂络合物已经有效地促进了[2 + 1] / [3 + 2]环加成反应的串联分子间序列。这个过程使人们能够使用新型的三环系统,并且级联反应具有区域和非对映选择性(参见方案; Cy =环己基)。进一步研究了[3 + 2]环加成反应,并使用了两种不同的炔烃伙伴。