Synthesis of 2-amino-4h-3,1-benzoxazines from DIPHENYL CYANOCARBONIMIDATE (cas 19245-25-1). facile replacement of the n-cyanoimine function by nitrogen nucleophiles

Add time:07/30/2019    Source:sciencedirect.com

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.

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