A short and efficient synthesis of the unnatural enantiomer of (+)-(S)-ipsd
ienol 1 and (-)-(S)-ipsenol 2 is presented via an asymmetric allylboration.
The synthesis was achieved by using a one-pot reduction-methylenation of a
n exo-methylene lactone intermediate. (C) 1999 Elsevier Science Ltd. All ri
ghts reserved.