I2-DMSO mediated tetra-functionalization of enaminones for the construction of novel furo[2′,3′:4,5]pyrimido[1,2-b]indazole skeletons via in situ capture of ketenimine cations

You Zhou, Li‐Sheng Wang, Shuang‐Gui Lei, Bo‐Cheng Tang, Zhi‐Cheng Yu, Xing Li, Yan‐Dong Wu, Kai‐Lu Zheng, An‐Xin Wu, An‐Xin Wu