Promiscuous Behavior of Rhizomucor miehei Lipase in the Synthesis of N-Substituted β-Amino Esters
作者:Leandro N. Monsalve、Florencia Gillanders、Alicia Baldessari
DOI:10.1002/ejoc.201101624
日期:2012.2
acrylates by using lipases as catalysts is reported. Various lipases, mono- and bifunctional amines, alkyl acrylates, and reaction parameters were studied. Under the optimal conditions, Rhizomucor miehei lipase showed high selectivity. It catalyzed the formation of the Michael monoadduct as the only product in high yield and purity. Moreover, when diamines were used as nucleophiles, the lipase catalyzed the
报道了使用脂肪酶作为催化剂将胺与丙烯酸酯的 aza-Michael 加成反应温和有效的方法。研究了各种脂肪酶、单和双官能胺、丙烯酸烷基酯和反应参数。在最佳条件下,米黑根霉脂肪酶表现出较高的选择性。它催化迈克尔单加合物的形成,作为唯一高产率和纯度的产物。此外,当使用二胺作为亲核试剂时,脂肪酶仅催化两个氨基之一的加成,在这种情况下显示出高底物特异性。Rhizomucor miehei 脂肪酶表现出的这种混杂和高度选择性的行为使我们能够获得 22 种 N 取代的 β-氨基酯,其中 15 种是新产品。