HCHO CH3CL CH3COOCH3 CH3ONA CO NIHCHO H CH OH2 3T0CH CL N...
Câu 109:
HCHO CH
3
Cl CH
3
COOCH
3
CH
3
ONa CO
Ni
HCHO H CH OH
2
3
t
0
CH Cl NaOH CH OH NaCl
3
3
CH COOCH NaOH CH OH CH COONa
3
3
3
3
CO 2H CH OH
ZnO,CrO
3