Synthesis of 2-amino-4h-3,1-benzoxazines from diphenyl cyanocarbonimidate. facile replacement of the n-cyanoimine function by nitrogen nucleophiles
作者:Peter J. Garratt、Christopher J. Hobbs、Roger Wrigglesworth
DOI:10.1016/0040-4020(89)80113-9
日期:1989.1
The reaction of 2-aminobenzylalcohol (2) with diphenyl cyanocarbonimidate (1) gave 2-N-cyanoimino-4H-3,1-benzoxazine (3). The cyanoimino group can be readily replaced by amines to give a variety of 2-amino-4H-3,1-benzoxazines.
2-氨基苄基醇(2)与氰基亚氨基碳酸二苯酯(1)反应,得到2-N-氰基氨基-4H-3,1-苯并恶嗪(3)。氰胺基可以很容易地被胺取代,得到各种2-氨基-4H-3,1-苯并恶嗪。