题目内容
23.(每空2分,14分)具有水果香味的中性物质A可以发生下列变化:
(1) 推断下述物质的结构简式:
A:________________ B:________________
C:________________ D:________________
(2) 写出下列变化的化学方程式:
A+NaOH→B+C:_____________________________________________
C→G:_________________________________________________
D→E:_________________________________________________
(1) 推断下述物质的结构简式:
A:________________ B:________________
C:________________ D:________________
(2) 写出下列变化的化学方程式:
A+NaOH→B+C:_____________________________________________
C→G:_________________________________________________
D→E:_________________________________________________
(每空2分,14分)
(1)A:CH3COOCH2CH3 B:CH3COONa C:C2H5OH D:CH3CHO
(2) CH3COOCH2CH3+ NaOH → CH3COONa +C2H5OH
CH3CHO+2Ag(NH3) 2OH→CH3COONH4+H2O+2Ag↓+3NH3
(1)A:CH3COOCH2CH3 B:CH3COONa C:C2H5OH D:CH3CHO
(2) CH3COOCH2CH3+ NaOH → CH3COONa +C2H5OH
CH3CHO+2Ag(NH3) 2OH→CH3COONH4+H2O+2Ag↓+3NH3
根据A的性质可判断,A是酯类,水解生成B和C。由于C的最终氧化产物是是B,说明B和C中含有相同的碳原子数,其中B是羧酸钠,C是醇。因为C在浓硫酸的作用下,发生消去反应,生成物G是烯烃,根据G和溴水的加成产物可知,G是乙烯,所以C是乙醇,D是乙醛,E是醋酸铵,B是醋酸钠,A是乙酸乙酯。
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