I<sub>2</sub>-Catalyzed oxidative synthesis of <i>N</i>,4-disubstituted quinazolines and quinazoline oxides
作者:Nagesh Jatangi、Radha Krishna Palakodety
DOI:10.1039/c9ob00349e
日期:——
approach to the synthesis of N,4-disubstituted quinazoline-2-amine and oxides is described. This transformation proceeds smoothly in the presence of molecular iodine. The metal-free protocol presented here is insensitive to air moisture and operationally simple. This versatile and synthetic methodology is broadly applicable to a variety of N,4-disubstituted quinazoline-2-amines and oxides, which are synthesized
Base-catalyzed synthesis of quinazolines in aqueous medium
作者:Nagesh Jatangi、Radha Krishna Palakodety
DOI:10.1016/j.tetlet.2019.151186
日期:2019.10
An alternative green protocol and step economy for the synthesis of quinazoline has been developed. The reaction of readily available 2-aminobenzonitriles with various organometallic reagents led to ortho-aminoaryl N-H ketimine species. The subsequent base catalysed N-C bond formation with various isothiocyanates afforded quinazoline scaffolds in aqueous medium. The salient features of this protocol