Intramolecular Hydroamination of Conjugated Dienes Catalyzed by Lewis and Brønsted Acids
作者:Carmen Nájera、Alejandro Baeza
DOI:10.1055/s-0030-1259680
日期:2011.3
acyclic aminodienes catalyzed by Lewis acids such as silver triflate, cationic gold complexes, BINAP―copper(II) triflate, iron trichloride, indium(III) bromide, iodine and by TfOH, as a representative Bronsted acid, are evaluated. The reaction proceeds in a 1,4-addition manner through a 5-exo-trig cyclization affording the corresponding 2-substituted pyrrolidines, (triphenylphosphite)gold(I) triflate, and
评估了由路易斯酸(例如三氟甲磺酸银、阳离子金配合物、BINAP-三氟甲磺酸铜(II)、三氯化铁、溴化铟(III)、碘和作为代表性布朗斯台德酸的 TfOH)催化的共轭无环氨基二烯的分子内加氢胺化。该反应通过 5-exo-trig 环化以 1,4-加成方式进行,得到相应的 2-取代吡咯烷、(亚磷酸三苯酯)金(I)三氟甲磺酸酯和 TfOH,提供最佳结果。