安息香缩合反应中反应重现性及Cannizzaro反应探讨

摘要

对VB1催化下的安息香缩合反应的低重现性及苯甲醛的Cannizzaro反应进行了初步的探讨，实验结果表明：影响安息香缩合反应重现性的主要因素是NaOH的用量，而且较高的pH不能引起苯甲醛的Cannizzaro反应．%The lower reproducibility of benzoin condensation reaction catalyzed by VB1 and Cannizzaro reaction of benzaldehyde were investigated preliminarily. The experimental results show that the main factor influ encing reproducibility of benzoin condensation reaction is the amount of NaOH and the higher pH can t cause the Cannizzaro reaction of benzaldehyde.