Bo. Buckman et al., SOLUTION-PHASE PARALLEL SYNTHESIS OF BENZOXAZINES USING A POLYMER-SUPPORTED CARBODIIMIDE, Tetrahedron letters, 39(12), 1998, pp. 1487-1488
A diverse library of 2-aminobenzoxazines 3 has been synthesized using
a two step approach. Addition of anthranilic acids to isocyanates affo
rds ureas 2 that can be cyclized by polymer-supported EDC to give 2-am
inobenzoxazines 3. (C) 1998 Elsevier Science Ltd. All rights reserved.