28、(14分)
(1)消去反应....................................... (2分)
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|
![]()
![]()
![]()
![]()
|
OOCCH3
|
|
28、(14分)
(1)消去反应....................................... (2分)
|
|
![]()
![]()
![]()
![]()
|
OOCCH3
|
|