76638-01-2Relevant articles and documents
ASYMMETRIC HALOLACTONISATION REACTION-4 ASYMMETRIC SYNTHESIS OF OPTICALLY ACTIVE α,β-EPOXYALDEHYDES FROM α,β-UNSATURATED ACIDS
Hayashi, M.,Terashima, S.,Koga, K.
, p. 2797 - 2803 (2007/10/02)
The bromolactones (5) stereoselectively produced by the asymmetric bromolactonisation of (S)-N-(α,β-unsaturated)acylprolines (3), were elaborated to highly optically active 2(R),3(S)-epoxyaldehydes (8) (84-98percent ee) by successive epoxide formation and reductive cleavage of the proline moiety.The overall process constitutes a highly efficient asymmetric synthesis of 8 from α,β-unsaturated acids (1).
