4-exo-dig and 5-exo-dig Cyclocarbopalladations: an expeditious solution toward molecular complexity?
作者:Christophe Bour、Gaëlle Blond、Bahaâ Salem、Jean Suffert
DOI:10.1016/j.tet.2006.06.116
日期:2006.11
The 4-exo-dig and 5-exo-dig cyclocarbopalladations have been efficiently used to produce molecular complexity in a straightforward manner. Strained 1,2-cyclobutanediols are rapidly obtained under microwave irradiation in high yields. In many cases, the cyclocarbopalladation cascade reaction is associated with a 6 or 8π electrocyclic reaction. During the process of the 5-exo-dig cyclocarbopalladation
4- exo - dig和5- exo - dig环卡巴来合成已被有效地用于以简单的方式产生分子复杂性。在微波辐射下,可以高产率快速获得应变的1,2-环丁二醇。在许多情况下,环卡巴拉定级联反应与6或8π电环反应有关。在5-过程外型-挖cyclocarbopalladation上苯并环庚酮衍生物,芳族C-H活化导致乙烯基取代芳烃。蛇胆草和Aleurodiscal家族的天然产物的多环骨架可以从简单的起始原料中分几步制备。