那就是羧酸酯了,
甲酸丁酯(4种)
HCOOCH2CH2CH2CH3
HCOOCH(CH3)CH2CH3
HCOOCH2CH(CH3)CH3
HCOOC(CH3)3
乙酸丙酯(2种)
CH3COOCH2CH2CH3
CH3COOCH(CH3)2
丙酸乙酯(1种)
CH3CH2COOCH2CH3
丁酸甲酯(2种)
CH3CH2CH2COOCH3
(CH3)2CHCOOCH3
答案是9种
那就是羧酸酯了,
甲酸丁酯(4种)
HCOOCH2CH2CH2CH3
HCOOCH(CH3)CH2CH3
HCOOCH2CH(CH3)CH3
HCOOC(CH3)3
乙酸丙酯(2种)
CH3COOCH2CH2CH3
CH3COOCH(CH3)2
丙酸乙酯(1种)
CH3CH2COOCH2CH3
丁酸甲酯(2种)
CH3CH2CH2COOCH3
(CH3)2CHCOOCH3
答案是9种