試題詳解

30. The acetoacetic ester synthesis, shown below, can be used to prepare 5-methyl-2-hexanone. Which one of the following alkyl bromides would be used in the synthesis? 
(A) (CH₃)₂CHBr
(B) (CH₃)₂CHCH₂Br
(C) (CH₃)₂CHCH₂CH₂Br
(D) CH₃CH₂CHBrCH₃
(E) (CH₃)₂CBrCH₃