139308-53-5Relevant articles and documents
Decarboxylative N-Alkylation of Azoles through Visible-Light-Mediated Organophotoredox Catalysis
Kobayashi, Rino,Shibutani, Shotaro,Nagao, Kazunori,Ikeda, Zenichi,Wang, Junsi,Ibá?ez, Ignacio,Reynolds, Matthew,Sasaki, Yusuke,Ohmiya, Hirohisa
supporting information, p. 5415 - 5419 (2021/07/19)
An organophotoredox-catalyzed decarboxylative cross-coupling between azole nucleophiles and aliphatic carboxylic acid-derived redox-active esters is demonstrated. This protocol efficiently installs various tertiary or secondary alkyl fragments onto the nitrogen atom of azole nucleophiles under mild and transition-metal-free conditions. The pyridinium additive successfully inhibits the formation of elimination byproducts from the carbocation intermediate. This reaction is applicable to the synthesis of a protein-degrader-like molecule containing an azole and a thalidomide.
Electrochemical Decarboxylative N-Alkylation of Heterocycles
Baran, Phil. S.,He, Chi,Shang, Ming,Sheng, Tao,Vantourout, Julien. C.,Zhang, Hai-Jun
supporting information, p. 7594 - 7598 (2020/10/09)
An operationally simple method to employ nonactivated carboxylic acids as alkylating agents in the N-alkylation of heterocycles is reported through an electrochemically driven anodic decarboxylative process. A wide substrate scope across a range of heterocycles is demonstrated along with a series of applications that significantly reduce the step count required to access such medicinally relevant structures.