^pof;
Chemistry,;
Faculty;
of;
Science,;
University;
of;
Maragheh,;
Maragheh;
55181-83111,;
1ran;
^pof;
Mechanics,;
Islamic;
Azad;
University;
of;
Ajabshir,;
Ajabshir;
55416-13111,;
Iran;
Knoevenagel缩合反应; ZrOCl2.8H2O; 反应合成; 绿色化学; 催化; 双键; 碳; 氰基乙酸乙酯;