作者:Xue-Song Wu、Yan Chen、Man-Bo Li、Meng-Guang Zhou、Shi-Kai Tian
DOI:10.1021/ja306407x
日期:2012.9.12
primary allylic amines was substituted directly by sulfinate salts with excellent regio- and stereoselectivities. In the presence of 0.1 mol % [Pd(allyl)Cl](2), 0.4 mol % 1,4-bis(diphenylphosphino)butane (dppb), and excess boric acid, a range of α-unbranched primary allylic amines were smoothly substituted with sodium sulfinates in an α-selective fashion to give structurally diverse allylic sulfones
主要烯丙基胺中的 NH(2) 组被亚磺酸盐直接取代,具有出色的区域和立体选择性。在 0.1 mol % [Pd(allyl)Cl](2)、0.4 mol % 1,4-双(二苯基膦基)丁烷 (dppb) 和过量硼酸的存在下,一系列 α-无支链伯烯丙胺被顺利合成以α-选择性方式用亚磺酸钠取代,得到结构多样的烯丙基砜,收率良好,具有独特的 E 选择性。用 1,1'-bi-2-naphthol (BINOL) 代替 dppb 可以将不对称的 α-手性伯烯丙胺转化为相应的烯丙基砜,收率良好至极好,同时具有极好的 ee 保留率。重要的,