Dense and stereo-controlled integrations of C–N bonds on the azulenone scaffold are achieved by sequential (i) ene, (ii) [6 + 2]-cycloaddition, and (iii) hetero-conjugate addition reactions leading to a topologically complex bis-bridged skeleton.
通过(i)烯、(ii)[6 + 2]-环加成和(iii)杂共轭加成反应,在
氮酮支架上实现了 C-N 键的密集和立体控制整合,从而形成拓扑结构复杂的双桥骨架。