A biomass-involved, one-pot, two-step protocol for the synthesis of N-substituted 3,4-dihydro-2H-1,4-benzoxazines has been developed. A wide range of new compounds have been efficiently synthesized in moderate to excellent yields via the three-component consecutive reactions between methyl 3-dehydroshikimiate (3-MDHS), amines and 1,2-dichloroalkanes in short reaction times under microwave conditions.
开发了一种涉及
生物质的单锅两步合成N取代
3,4-二氢-2H-1,4-苯并噁嗪的协议。通过在微波条件下,3-去氢
香豆酸甲酯(3-MDHS)、胺和1,2-二
氯烷烃之间进行的三组分连续反应,成功合成了一系列新化合物,产率从中等到优良且反应时间短。