Kinetic Diastereomer Differentiation in Au(III)- and Bi(III)-Catalyzed Benzylic Arylation: Concise and Stereocontrolled Synthesis of 2-Amino-1,1-diarylalkanes
作者:Etienne Chénard、Stephen Hanessian
DOI:10.1021/ol500902p
日期:2014.5.16
stereoselective reactions catalyzed by Brønsted and Lewis acids. Gold(III) chloride and bismuth(III) triflate were found to be especially efficient as catalysts, showing kinetically controlled differentiation in the reactivity of diastereomeric α-substituted benzyl alcohols. Applications to therapeutically relevant syn- and anti- 2-amino-1,1-diarylalkanes are projected.
携带在烷烃链的相邻α硝基或α-叠氮基苄醇被转化成顺式-1,1-二芳基-2-硝基-和2- azidoalkanes与由布朗斯台德酸和路易斯酸催化的立体选择性反应的富电子的芳烃。发现氯化金(III)和三氟甲磺酸铋(III)作为催化剂特别有效,在非对映异构体α-取代的苄醇的反应性中表现出动力学控制的差异。预计将其用于治疗相关的顺式和反式2-氨基-1,1-二芳基烷烃。