Iron Porphyrin-Catalyzed Olefination of Ketenes with Diazoacetate for the Enantioselective Synthesis of Allenes
摘要:
In the presence of Ph3P and catalytic Fe(TCP) Cl, ketenes could react with EDA to give allenes in high yields under neutral conditions for the first time. By employing chiral phosphine instead of PPh3, allenes could be synthesized with high enantioselectivity (93-98% ee) in good yields.
Iron Porphyrin-Catalyzed Olefination of Ketenes with Diazoacetate for the Enantioselective Synthesis of Allenes
作者:Chuan-Ying Li、Xiao-Bing Wang、Xiu-Li Sun、Yong Tang、Jun-Cheng Zheng、Zheng-Hu Xu、Yong-Gui Zhou、Li-Xin Dai
DOI:10.1021/ja068642v
日期:2007.2.1
In the presence of Ph3P and catalytic Fe(TCP) Cl, ketenes could react with EDA to give allenes in high yields under neutral conditions for the first time. By employing chiral phosphine instead of PPh3, allenes could be synthesized with high enantioselectivity (93-98% ee) in good yields.