Preparation of N-Arylquinazolinium Salts via a Cascade Approach

Autor: Mani Ramanathan, Jing Wan, Shiuh-Tzung Liu
Rok vydání: 2019
Předmět:
Zdroj: The Journal of Organic Chemistry. 84:7459-7467
ISSN: 1520-6904
0022-3263
DOI: 10.1021/acs.joc.9b00601
Popis: An easy manipulation method for the preparation of N-arylquinazolinium salts is described from readily available aryldiazonium salts, nitriles, and 2-aminoarylketones in a one-pot operation. This method relies on the in situ generation of the N-arylnitrilium intermediate from the reaction of aryldiazonium salt with nitrile, which undergoes amination/cascade cyclization/aromatization, leading to N-arylquinazolinium salts in excellent yields. Nucleophilic addition of alkoxide to these N-arylquinazolinium salts provides functionalized dihydro- N-arylquinazoline.
Databáze: OpenAIRE