Theoretical studies on iron-catalyzed azaindoline formation: mechanism and site-selectivity.

Autor: Juping Wang, Rongxing Xiao, Kangcheng Zheng, Li Qian
Předmět:
Zdroj: Dalton Transactions: An International Journal of Inorganic Chemistry; 9/7/2021, Vol. 50 Issue 33, p11370-11375, 6p
Abstrakt: The mechanism and site-selectivity for Fe-catalyzed azaindoline formation from 1,2,3,4-tetrazole were examined computationally. The H-atom abstraction/radical rebound stepwise mechanism is proposed. The aliphatic H-atom abstraction (HAA) vs. electrophilic aromatic substitution (EAS) steps are responsible for the sp³ vs. sp² C-H amination site-selectivity and a larger steric congestion disfavors sp² EAS, thus resulting in Fe-catalyzed site-selectivity toward sp³ C-H amination. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index