Formation of secondary or tertiary aliphatic amines in aqueous media
Secondary and tertiary amines can be easily obtained from primary and secondary amines, respectively, in completely aqueous media, in the presence of a bicatalytic system formed of cheap commercial aluminum (Al) powder and 5% rhodium (Rh) or ruthenium (Ru) deposed on charcoal.
Marieta Simion, Alina,Arimura, Takashi,Miyazawa, Akira,Simion, Cristian,Surya Prakash,Olah, George A.,Tashiro, Masashi
scheme or table
p. 2859 - 2865
(2009/12/03)
Reductive amination with 5-ethyl-2-methylpyridine borane
We report a new amine borane, 5-ethyl-2-methylpyridine borane complex (PEMB) useful for reductive aminations of ketones and aldehydes in methanol or neat. Two of the three hydrides on PEMB are effectively utilized maximizing the economy of the reagent.
Burkhardt, Elizabeth R.,Coleridge, Brian M.
p. 5152 - 5155
(2008/12/20)
Cyclization of α,ω Aliphatic Diamines and Conversion of Primary Amines to Symmetrical Tertiary Amines by a Homogeneous Ruthenium Catalyst
α,ω Aliphatic diamines were cyclized to heterocyclic amines by being heated at 180 deg C for 5 h with RuCl2(Ph3P)3 in diphenyl ether.Primary amines having an α-hydrogen atom are converted to symmetrical tertiary amines by being heated at 185 or 235 deg C for 8 h with RuCl3*3H2O and Ph3P in THF solution.
Bui-The-Khai,Concilio, Carlo,Porzi, Gianni
p. 1759 - 1760
(2007/10/02)
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