Synthesis of Benzoxazines, 3,4-Dihydroquinazolines and Quinazolinethiones
摘要:
Reaction of aldehydes, ketones, imines and isothiocyanates with N-(2-bromophenyl) ethylimidates la in presence of lithium, is considered as an original route to 4H-3, 1-benzoxazines, 3,4-dihydroquinazolines and 4(3H)-quinazolinethiones.
A Novel Approach to the Synthesis of 4H-3,1-Benzoxazines
作者:B. Hajjem、A. Chihi、B. Baccar
DOI:10.1080/00397919208021306
日期:1992.1
Imidates of type 1 react with organometallic reagents to give 4H-3,1-benzoxazines 2 in good yield. Synthetic Considerations and Spectroscopic details are discussed.