76638-05-6Relevant 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).
A highly efficient asymmetric synthesis of optically active α,β-epoxyaldehydes from α,β-unsaturated acids
Terashima, Shiro,Hayashi, Masaji,Koga, Kenji
, p. 2733 - 2736 (2007/10/02)
The bromolactones(3) prepared from α,β-unsaturated acids(1) were converted to optically active α,β-epoxyaldehydes(2(R),3(S)-6)(84-98% ee) by successive epoxide formation and reductive cleavage of the proline moiety. The overall process constitutes a highly efficient asymmetric synthesis of 2(R),3(S)-6 from 1.