Functionalized Carbodiimide Mediated Synthesis of 2,3-Disubstituted Quinazolin-4(3H)-ones via the Tandem Strategy of C-Nucleophilic Addition and Intramolecular NH-Substitution Cyclization
作者:Takao Saito、Hayato Nakano、Noriki Kutsumura
DOI:10.1055/s-0032-1316773
日期:——
moiety at the proximal estergroup. A facile synthesis of quinazolin-4(3H)-ones possessing carbon substituents at positions 2 and 3 has been developed. Key to the synthesis is a tandem strategy involving introduction of a 2-substituent and construction of the quinazolinone framework via C-nucleophilic addition to the carbodiimide cumulenic carbon followed by intramolecular nucleophilic substitution by
Biomass derived Cu<sub>2</sub>O nanoparticles for N-atom insertion reactions: a base-free synthesis of quinazolinones with a green approach
作者:Thrilokraj R.、Jan Grzegorz Małecki、Srinivasa Budagumpi、Umesh A. Kshirsagar、Ramesh B. Dateer
DOI:10.1039/d4gc00569d
日期:2024.4.22
This work describes the use of an eco-friendly biogenic approach for the synthesis of Cu2O NPs utilizing Cucumis melo peel extract for the first time and employed for the one-pot multicomponent synthesis of quinazolinones in a green solvent.
Copper-Catalyzed Tandem Reaction of 2-Aminobenzamides with Tertiary Amines for the Synthesis of Quinazolinone Derivatives
We developed a copper-catalyzed tandem reaction of 2-aminobenzamides with tertiary amines for the formation of quinazolinone derivatives. The strategy includes two steps (cyclization and coupling) performed in one pot. A number of substrates reacted well under standard conditions to give the corresponding quinazolinone derivatives in moderate to good yields.