Prévia do material em texto
c) H-A + OH O: H + OCH₃ H H A: OH OCH₃ d) + OH : I: OH₂ I + e) CH₃ H₃C CH₃ CH₃ : OH OH₂ + + H-A CH₃ CH₃ H CH₃ + H H H₃O + + CH₃ a 10.43 Attack of methanol at carbon a gives one enantiomer + whereas attack at carbon b gives the other. b 164