Magnesium Bistrifluoromethanesulfonimide Catalysed Three-Component Synthesis of Protected Homoallylic Amines
作者:Hongshe Wang、Weixing Zhao
DOI:10.3184/174751911x13056175312712
日期:2011.5
A one-pot, three-component reaction of an aldehyde, benzyl carbamate and allyltrimethylsilane in the presence of 3 mol% of magnesium bistrifluoromethanesulfonimide at room temperature has been shown to afford the corresponding protectedhomoallylic amine in high yield.
Magnesium Bistrifluoromethanesulfonimide Catalyzed Three-component Synthesis of Protected Homoallylic Amines
作者:Hongshe Wang、June Zeng
DOI:10.5012/bkcs.2011.32.7.2203
日期:2011.7.20
A mild and efficient procedure has been developed for the one-pot, three-component reaction of aldehydes, benzyl carbamate and allyltrimethylsilane in the presence of 3 mol % of magnesium bistrifluoromethanesulfonimide at room temperature to afford the corresponding protectedhomoallylic amines in high yields.
Iodine as a Very Powerful Catalyst for Three-Component Synthesis of Protected Homoallylic Amines
作者:Prodeep Phukan
DOI:10.1021/jo0498462
日期:2004.5.1
Iodine catalyzes efficiently the three-component condensation of aldehydes, benzyl carbamate, and allyltrimethylsilane to afford the corresponding protectedhomoallylic amines in excellent yields.
Mild and Efficient Tris(pentafluorophenyl)borane-catalyzed Sakurai Allylation of N-Benzyloxycarbonylamino p-Tolylsulfone with Allyltrimethylsilane
作者:Ponnaboina Thirupathi、Lok Nath Neupane、Keun-Hyeung Lee
DOI:10.5012/bkcs.2012.33.4.1275
日期:2012.4.20
Tris(pentafluorophenyl)borane, $B(C_6F_5)_3$, was found to be an efficient catalyst for synthesis of N-Cbzhomoallylic amines using Sakurai allylation of N-benzyloxycarbonyl-amino p-tolylsulfones with allyltrimethylsilane.
An efficient method for the one-pot synthesis of secondary and tertiary N-homoallylic carbamates using catalytic amount of HBF4 center dot OEt2 is described. The reaction proceeded smoothly to afford the corresponding N-homoallylic carbamates in good to high yields. Operationally simple and easily scalable features make this method more practical over existing methods. Use of HBF4 center dot OEt2 as an acid catalyst also proves the catalytic activity of fluorinated acid catalyst in this important organic transformation. (C) 2014 Elsevier B.V. All rights reserved.