作者:Peter H. Fuller、Jin-Woo Kim、Sherry R. Chemler
DOI:10.1021/ja806585m
日期:2008.12.31
methyleneoxy-functionalized dihydroindolines and pyrrolidines. Tetramethylaminopyridyl radical (TEMPO) serves as both the source of the oxygen and the stoichiometric oxidant. These reactions are catalyzed by copper(II) triflate, complexed with (4S,5R)-Bis-Phbox. The unprotected aminoalcohols can be obtained by sequential dissolving metal reductions of the N-S and O-N bonds.
本文报道了铜催化的烯烃的对映选择性分子内氨基氧化。这是对映选择性分子内烯烃氨基氧化过程的第一份报告。N-Arylsulfonyl-2-allylanilines 和 4-pentenylarylsulfonamides 以高产率和良好的对映选择性环化,提供新的手性亚甲氧基官能化二氢二氢吲哚和吡咯烷。四甲基氨基吡啶基(TEMPO)既是氧源又是化学计量氧化剂。这些反应由与 (4S,5R)-Bis-Phbox 络合的三氟甲磺酸铜 (II) 催化。未保护的氨基醇可以通过连续溶解 NS 和 ON 键的金属还原来获得。