Convenient synthesis of triarylmethanes and 9,10-diarylanthracenes by alkylation of arenes with aromatic aldehydes using acetyl bromide and ZnBr2/SiO2
作者:Mitsuo Kodomari、Maki Nagamatsu、Megumi Akaike、Tadashi Aoyama
DOI:10.1016/j.tetlet.2008.02.117
日期:2008.4
Reaction of electron-rich arenes with acetyl bromide and aldehydes in the presence of silica gel-supported zinc bromide was carried out in benzene to give selectively the corresponding triarylmethanes or 9,10-diarylanthracenes in high yields depending upon the ratio of an arene and an aldehyde. The mild conditions employed are especially noteworthy.
富电子芳烃与乙酰溴和醛的反应在硅胶支撑的溴化锌存在下在苯中进行,从而选择性地得到相应的三芳基甲烷或9,10-二芳基蒽,具体取决于芳烃和苯甲酸酯的比例。醛。使用的温和条件尤其值得注意。