Ultrasound-promoted synthesis and immunosuppressive activity of novel quinazoline derivatives

Synthesis of 2-aminobenzaldehydes by rhodium(iii)-catalyzed C–H amidation of aldehydes with dioxazolones

Various aldehydes were directly amidated with dioxazolones to afford 2-aminobenzaldehydes through rhodium(iii)-catalyzed CHO-directed C–H activation.

n-Bu4NI-catalyzed selective dual amination of sp3 C–H bonds: oxidative domino synthesis of imidazo[1,5-c]quinazolines on a gram-scale

A facile and efficient approach to the synthesis of imidazo[1,5-c]quinazolines was developed via a tandem reaction following dual sp³ C–H amination under metal-free conditions.

Quinazoline derivatives: synthesis and bioactivities

Owing to the significant biological activities, quinazoline derivatives have drawn more and more attention in the synthesis and bioactivities research. This review summarizes the recent advances in the synthesis and biological activities investigations of quinazoline derivatives. According to the main method the authors adopted in their research design, those synthetic methods were divided into five main classifications, including Aza-reaction, Microwave-assisted reaction, Metal-mediated reaction, Ultrasound-promoted reaction and Phase-transfer catalysis reaction. The biological activities of the synthesized quinazoline derivatives also are discussed.