Enantioselective Conjugate Addition of Nitroalkanes to Alkylidenemalonates Promoted by Thiourea-Based Bifunctional Organocatalysts
作者:Michel Chiarucci、Marco Lombardo、Claudio Trombini、Arianna Quintavalla
DOI:10.1002/adsc.201100732
日期:2012.2
Cinchona alkaloids-derived bifunctional thioureas efficiently catalyse the enantioselective conjugate addition of nitroalkanes to alkylidenemalonates with syn-diastereopreference, opening a route to the synthesis of optically active γ-amino acid derivatives.
金鸡纳生物碱衍生的双官能硫脲可有效催化硝基苯丙氨酸与顺式-非对映体优先的对映选择性共轭加成反应,为合成旋光性γ-氨基酸衍生物开辟了道路。