%0 Journal Article %T Asymmetric Synthesis of 4,1-Benzoxazepine-2,5-Diones ¡ª Effect of the Halogen of (2S)-¦Á-Haloacids %A Syeda Laila Rubab %A Bushra Nisar %A Abdul Rauf Raza %A Nisar Ullah %A Muhammad Nawaz Tahir %J Molecules %D 2014 %I MDPI AG %R 10.3390/molecules19010139 %X Novel chiral 4,1-benzoxazepine-2,5-diones have been unusually synthesized in a single step by exploiting the chiral pool methodology. Substituted anthranilic acids afford N-acylanthranilic acids and (3 R)-3-alkyl-4,1-benzoxazepines-2,5-dione upon coupling with ¦Á-chloroacids or ¦Á-bromoacids, respectively. %K (3R)-3-alkyl-4 %K 1-benzoxazepine-2 %K 5-diones %K asymmetric synthesis %K ¦Á-chloroacids %K ¦Á-bromoacids %K anthranilic acid %K chiral pool methodology %U http://www.mdpi.com/1420-3049/19/1/139