题目分桥 庚烯 B KMnO/H+ CH,COOH CH3COOH、 CH3(CH2);COOH CHCH,COCH,CH. CHCOCH3 CHCH,COCH A CH3(CH2)3CHCHCH3 B CHCH2 CH3 CH3 CHCH3 CH:CH2KMnO4 / H+ CH3COOH CH3 (CH2 ) 3COOH CH3COCH3 CH3CH2COCH3 CH3COOH、 CH3CH2COCH2CH3 CH3 CHCH3 ( CH2 ) A： 3 CH C CH3 CH3 C CH3 CH2 CH3 B： C CHCH3 CH3 CH2 CH3 CH2 C： 庚烯 A B C 题目分析