Transition metal-catalyzed formation of CF3-substituted α,β-unsaturated alkene and the synthesis of α-trifluoromethyl substituted β-amino ester
作者:Wan Pang、Shifa Zhu、Huanfeng jiang、Shizheng Zhu
DOI:10.1016/j.tet.2006.09.041
日期:2006.12
A new transition metal-catalyzed formation of CF3-substituted α,β-unsaturated alkenes through the ylide intermediate from the reaction between methyl 3,3,3-trifluoro-2-diazopropionate 1 and aryl aldehydes has been developed. Further transformation of the alkene affords the α-trifluoromethyl substituted β-amino ester, a valuable intermediate in the synthesis of fluorine-containing amino acids with potential
已经开发了由3,3,3-三氟-2-重氮丙酸甲酯1与芳基醛之间的反应通过叶立德中间体形成的CF 3取代的α,β-不饱和烯烃的过渡金属催化新反应。烯烃的进一步转化得到α-三氟甲基取代的β-氨基酯,这是具有潜在生物学应用的含氟氨基酸合成中的有价值的中间体。