Preparation of 4(3H)-quinazolinones from aryldiazonium salt, nitriles and 2-aminobenzoate via a cascade annulation

Autor: Shiuh-Tzung Liu, Ming-Tsung Hsu, Mani Ramanathan
Rok vydání: 2019
Předmět:
Zdroj: Tetrahedron. 75:791-796
ISSN: 0040-4020
DOI: 10.1016/j.tet.2018.12.065
Popis: One-pot synthesis of 3-aryl-4(3H)-quinazolinones has been realized through a cascade annulation. Reaction of aryldiazonium salt with a nitrile provides in situ generation of a reactive nitrilium ion, which is attacked by the amino group of 2-aminobenzoate followed by cyclization to deliver the desired product. This strategy offers a convenient and easy access to a wide range of functionalized quinazolinone.
Databáze: OpenAIRE