Pd-Catalyzed Orthogonal Knoevenagel/Perkin Condensation-Decarboxylation-Heck/Suzuki Sequences: Tandem Transformations of Benzaldehydes into Hydroxy-Functionalized Antidiabetic Stilbene-Cinnamoyl Hybrids and Asymmetric Distyrylbenzenes
作者:Naina Sharma、Abhishek Sharma、Amit Shard、Rakesh Kumar、Saima、Arun K. Sinha
DOI:10.1002/chem.201101174
日期:2011.9.5
Tandem reactions that involve chemoselective Knoevenagel/Perkin condensation–decarboxylation–Heck/Suzuki coupling or Heck–aldol sequences have been achieved. This enabled the first concise and efficient synthesis of several important hydroxy‐functionalized compound classes, such as stilbene–cinnamoyl hybrids (potent protein tyrosine phosphatase1B inhibitors), cinnamoyl–cinnamic acid hybrids, asymmetric
已经实现了涉及化学选择性Knoevenagel / Perkin缩合-脱羧-Heck / Suzuki偶联或Heck-醛醇缩合序列的串联反应。这样就可以首次简洁有效地合成几种重要的羟基官能化化合物,例如二苯乙烯-肉桂酰基杂化物(强力蛋白酪氨酸磷酸酶1B抑制剂),肉桂酰基-肉桂酸杂化物,不对称二苯乙烯基苯和联芳基苯乙烯。先前报道的合成需要多个步骤和保护/脱保护操作。