A Pd-catalyzed cascade cyclization for the construction of fused dihydrocyclohepta[de]naphthalene skeletons was developed. The skeleton was assembled from 3-iodo-4H-chromen-4-one, norbornene and 8-bromo-1-naphthoic acid. Unlike the classic Catellani reaction, which involves the removal of norbornene, in the present system, norbornene acts as a building block for the construction of rigid nonplanar
                                    开发了用于构建稠合二氢环庚 [ de ] 
萘骨架的 Pd 催化级联环化。骨架由 3-iodo-4 H -chromen-4-one、
降冰片烯和 8-bromo-1-naphthoic 酸组装而成。与涉及去除
降冰片烯的经典 Catellani 反应不同,在本系统中,
降冰片烯作为构建刚性非平面分子结构的基石,而不是作为邻位导向的瞬态介体。该合成涉及通过一锅法形成三个 C-C 键,并且与一系列取代基相容。