Amination reaction of allylic chlorides with silver iodide/lithium N,N-disilylamide mixed reagents
作者:Toshiaki Murai、Mikio Yamamoto、Shinzi Kato
DOI:10.1039/c39900000789
日期:——
The nucleophilic substitution of allylicchlorides with silveriodide/lithiumN,N-disilylamidemixedreagents gives protected primary allylic amines in good to excellent yields.
The direct synthesis of tertiary amines with three different substituents via the reaction of primary amines, alkyl halides, and α-chlorine substituted allylsilanes catalyzed by Lewis acids
作者:Makoto Kozuka、Teruko Tsuchida、Michiharu Mitani
DOI:10.1016/j.tetlet.2005.05.022
日期:2005.7
Tertiaryamines with three different substituents were obtained in a single step by the CuCl/B(OMe)3 or B(OMe)3-catalyzed reaction of α-chlorine substituted allylsilanes, alkyl halides, and primaryamines.
The Three-Component Joining Reaction of Primary Amines, Electron-Deficient Olefins, and α-Halogen-Substituted Allylsilanes Catalyzed by Copper(I) Chloride
Tertiary amines with three different substituents were straightforwardly obtained by the copper(I) chloride-catalyzed reaction of α-halogen substituted allylsilanes, electron-deficient olefins, and primaryamines. This reaction was more effectively performed by the addition of chloroacetone to the reaction system.
Julia, Marc; Verpeaux, Jean-Noel; Zahneisen, Thomas, Bulletin de la Societe Chimique de France, 1994, vol. 131, p. 539 - 554
作者:Julia, Marc、Verpeaux, Jean-Noel、Zahneisen, Thomas
DOI:——
日期:——
Silver iodide mediated amination reaction of allylic chlorides with lithium bis(trimethylsilyl)amide: a new synthetic method of N,N-disilylallylamines via lithium amide argentates
The nucleophilic substitution reaction of allylic chlorides with lithium bis(trimethylsilyl)amide (1) in the presence of silver halides has been studied in detail. Silver iodide (AgI) was found to be most effective for facilitation of the amination reaction. The reaction of alkyl-substituted allylic chlorides proceeded smoothly in S(N)2 fashion to give N,N-disilylallylamines in high yields when 0.1 or 0.5 equiv of AgI was used as an additive, whereas a stoichiometric amount of AgI was indispensable in the reaction of allylic chlorides having a phenyl group. The reaction of geranyl or neryl chloride proceeded with retention of configuration of the C=C bond to give only one isomer 4 or 5, respectively. The oxygen-containing functional groups and chlorine remained intact during the reaction. The reaction of alpha-silylmetallyl chloride 17 proceeded in an S(N)2' manner to afford (Z)-allylamine 18. So as to disclose the active species in the AgI-mediated reaction, the variable low-temperature C-13 NMR experiments using the mixture of AgI and 1 in THF have been performed. It has been suggested that lithium amide argentates such as (Me3Si)2NAg(I)Li (20) and [(Me3Si)2N]2Ag(I)Li2 (21) are formed in the reaction mixture, and the nucleophilicity and basicity of 1 are controlled by forming these species.