furnish tetrahydrocarbolines in good yields with a high selectivity. This reaction also proceeds with homoveratrylamine to give the corresponding tetrahydroisoquinolines. A variety of aryl and heteroaryl aldehydes have also been used for producing tetrahydrocarbolines in high yields. This AlSBA-15-promoted Pictet–Spengler reaction provides a mild alternative to the traditional Brönsted or Lewis acids
色胺,芳基醛和
苄基氯在80°C的
乙腈中使用具有六方孔结构的有序介孔Al
SBA-15
催化剂进行平滑偶联,从而以高收率和高选择性提供四
氢萘。该反应也用高凡拉明进行,得到相应的
四氢异喹啉。各种芳基和杂芳基醛也已被用于高产率地生产四烃基化合物。这种由Al
SBA-15促进的Pictet-Spengler反应提供了温和的替代方法,可替代通常用于制备四烃和
四氢异喹啉的传统布朗斯台德酸或
路易斯酸。