Orbital interactions. 7. The Birch reduction as a tool for exploring orbital interactions through bonds. Through-four-, -five-, and -six-bond interactions
Orbital interactions. 7. The Birch reduction as a tool for exploring orbital interactions through bonds. Through-four-, -five-, and -six-bond interactions
Pd-Catalyzed C–H Annulation of Five-Membered Heteroaryl Halides with Norbornene Derivatives
作者:Birakishore Padhi、Geunhee Kang、Eunmin Kim、Jeongmin Ha、Hyun Tae Kim、Jeewoo Lim、Jung Min Joo
DOI:10.1021/acscatal.9b05177
日期:2020.2.7
Complementary to Catellani-type reactions and 1:1 coupling of six-membered halo(hetero)arenes and norbornene (NBE) derivatives, Pd-catalyzed 1:2 coupling of five-membered haloheteroarenes with NBEs was achieved to afford rigid nonplanar heterocycles. Pyrazole, thiophene, furan, and indole underwent exo- and trans-selective annulation. Two strained alkene groups of the resulting products were further
Orbital interactions. 7. The Birch reduction as a tool for exploring orbital interactions through bonds. Through-four-, -five-, and -six-bond interactions