The CeCl3·7H2O–NaI system as promoter in the synthesis of functionalized trisubstituted alkenes via Knoevenagel condensation
作者:Giuseppe Bartoli、Romina Beleggia、Sandra Giuli、Arianna Giuliani、Enrico Marcantoni、Massimo Massaccesi、Melissa Paoletti
DOI:10.1016/j.tetlet.2006.07.031
日期:2006.9
The arylidene malonates with two different geminal carboxylate functions, a suitable class of substrates of several synthetic and pharmacological studies, are easily available through Knoevenagel condensation of ethyl tert-butyl malonate and different aromatic aldehydes. The results have increased the potentialities of CeCl3·7H2O–NaI system as a type of water-tolerant green Lewis acid promoter for
丙二酸叔丁酯和不同的芳族醛通过Knoevenagel缩合反应,可以轻松获得具有两种不同的双羧酸酯功能的芳基丙二酸酯,这是几种合成和药理研究的合适底物。结果增加了CeCl 3 ·7H 2 O–NaI体系作为碳-碳键形成程序的一种耐水绿色路易斯酸助催化剂的潜力。