1,4-addition of chiral 2-propenylphosphonamide anions to alpha-substitutedcyclopentenones: use in enantioselective syntheses of methyl dihydrojasmonates and methyl jasmonates
Hc. Hailes et al., 1,4-addition of chiral 2-propenylphosphonamide anions to alpha-substitutedcyclopentenones: use in enantioselective syntheses of methyl dihydrojasmonates and methyl jasmonates, TETRAHEDR L, 42(41), 2001, pp. 7325-7328
The addition of chiral 2-propenylphosphonamide anions, generated from the r
eaction products of (1R,2S)-ephedrine and 2-propene-1-phosphonyl dichloride
, to alpha -substituted cyclopentenones is described. Ozonolysis of the add
ition products led to the synthesis of both enantiomers of methyl dihydroja
smonate and methyl jasmonate. (C) 2001 Elsevier Science Ltd. All rights res
erved.