通过Biotage Initiator微波反应进行四元稠环以及五元稠环的合成耐士科技

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 8p electrocyclic reaction. During the process of the 5-exo-dig cyclocarbopalladation on benzosuberone derivatives, an aromatic C–H activation leads to vinylic substituted aromatics. Polycyclic skeletons of natural products of the family of Ophiobolin and Aleurodiscal can be prepared in few steps from simple starting material.