Bis(ethylenediamine)(L-2,3-diaminopropionic acid)platinum(IV) chloride. Preparation, resolution, and determination of absolute configuration

Enantiomers of 2-methyl- and 2,4-dimethy

Enantiomers of 2-methyl- and 2,4-dimethyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-2-carboxylic acid: Preparation by resolution, determination of absolute configuration, and Curtius rearrangement

✍ Alenka Rutar; Urša Žbontar; Danijel Kikelj; Ivan Leban 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 260 KB 👁 1 views

Both enantiomers of 2-methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-2carboxylic acid 2 and 2,4-dimethyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-2-carboxylic acid 3 were prepared via resolution of the corresponding racemic carboxylic acids with (R)-and (S)-1-phenylethylamine, respectively. Absolute config