Copper-Catalyzed Amine-Alkyne-Alkyne Addition Reaction: An Efficient Method For the Synthesis of γ,δ-Alkynyl-β-amino Acid Derivatives
作者:Lei Zhou、Qi Shuai、Huan-feng Jiang、Chao-Jun Li
DOI:10.1002/chem.200901416
日期:2009.11.2
A simple and efficient method for the synthesis of γ,δ‐alkynyl‐β‐amino acid derivatives by a copper‐catalyzed three‐component amine–alkyne–alkyne addition reaction was developed. Various γ,δ‐alkynyl‐β‐amino acid derivatives were synthesized in moderate to good yields in one step. With chiral prolinol derivatives employed as the amine component, excellent diastereoselectivities (up to >99:1 diastereomeric
开发了一种通过铜催化的三组分胺-炔烃-炔烃加成反应合成γ,δ-炔基-β-氨基酸衍生物的简单有效的方法。一步合成中,高产率的各种γ,δ-炔基-β-氨基酸衍生物。将手性脯氨醇衍生物用作胺组分,可获得优异的非对映选择性(高达> 99:1的非对映异构体比率(dr))。还描述了反应的范围和所得氨基酸衍生物的进一步转化,例如脱保护和环化。