81002-23-5Relevant articles and documents
ASYMMETRIC 1,4-ADDITIONS OF COORDINATED MeCu.BF3 TO CHIRAL ENOATES: ENANTIOSELECTIVE SYNTHESES OF (S)-(-)-CITRONELLIC ACID
Oppolzer, Wolfgang,Moretti, Robert,Godel, Thierry,Meunier, Anne,Loeher, Heinz
, p. 4971 - 4974 (2007/10/02)
nBu3P- or cyanide-stabilized RCu.BF3 (R=Me, 4-Me-3-pentenyl) undergo efficient 1,4-additions to neopentylether-shielded trans-enoates.Thus chiral β-substituted carboxylic acids e.g. (S)-citronellic acid were obtained in high e.e. (Schemes 2 and 4).