A Convenient Method for the Synthesis of β,γ-Unsaturated Amines from Alkenes via α,β-Unsaturated Diphenylsulfonium Salts
作者:Hiroyuki Yamanaka、Jun-ichi Matsuo、Asahi Kawana、Teruaki Mukaiyama
DOI:10.1246/cl.2003.626
日期:2003.7
1,1-Disubstituted and trisubstituted alkenes were converted into the corresponding β,γ-unsaturated amines 4 via three steps: the initial formation of α,β-unsaturated diphenylsulfonium triflates 2 from alkenes and diphenyl(trifluoromethanesulfonyloxy)sulfonium trifluoromethanesulfonate (1), followed by double bond migration of 2 to β,γ-unsaturated sulfonium triflates 3 with primary or secondary amines
1,1-二取代和三取代烯烃通过三个步骤转化为相应的 β,γ-不饱和胺 4:由烯烃和二苯基(三氟甲磺酰氧基)锍三氟甲磺酸盐(1)初步形成 α,β-不饱和二苯锍三氟甲磺酸盐 2,然后通过 2 与伯胺或仲胺的双键迁移至 β,γ-不饱和锍三氟甲磺酸盐 3,以及 3 与这些胺的连续亲核取代。