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7667441 
Journal Article 
Phenanthrenes/dihydrophenanthrenes: the selectivity controlled by different benzynes and allenes 
Yao, L; Fang, Bo; Hu, Q; Lei, Yu; Bao, Li; Hu, Y; , 
2020 
Yes 
Chemical Communications
ISSN: 1359-7345
EISSN: 1364-548X 
ROYAL SOC CHEMISTRY 
CAMBRIDGE 
56 
96 
15185-15188 
English 
33216071 
WOS:000607511700016 
A method for the intermolecular annulation of benzynes with allenes is disclosed. This protocol utilized allenes as an unconventional diene component for the selective synthesis of phenanthrenes and dihydrophenanthrenes under the control of different benzyne precursors, featuring high atom-economy and good functional group compatibility. Density functional theory (DFT) calculations reveal that different migratory routes of the aromatic C-H bond are crucial for the observed selectivity.