An efficient synthesis of substituted (Z)-allylamines and 7-membered nitrogen heterocycles from (Z)-3-(tributylstannyl)allylamine
作者:Robert J. P. Corriu、Bolin Geng、Joel J. E. Moreau
DOI:10.1021/jo00058a026
日期:1993.3
The reaction of N-(trimethylsilyl)allylamine with 2 mol of n-butyllithium, followed by treatment with chlorotributyltin and subsequent hydrolysis, gave (Z)-3-(tributylstannyl)allylamines in high yields. The N,N-disilylated derivatives, upon transmetalation of the C-Sn bond, led to unstable vinyllithium species. The latter readily underwent a [1,4] nitrogen to carbon silyl migration to give a lithium amide. The unprotected (Z)-3-(tributylstannyl)allylamine underwent a palladium-catalyzed cross-coupling reaction with aromatic bromides affording a stereospecific preparation of substituted allylic amines with Z configuration of the carbon-carbon double bond. The reactions of ortho-functionalized aryl bromides offer a one-step preparation of 7-membered nitrogen heterocycles in high yields.
BURNS, STEPHANIE A.;CORRIU, ROBERT J. P.;HUYNH, VILAM;MOREAU, JOEL J. E., J. ORGANOMET. CHEM., 333,(1987) N 3, 281-290
作者:BURNS, STEPHANIE A.、CORRIU, ROBERT J. P.、HUYNH, VILAM、MOREAU, JOEL J. E.
DOI:——
日期:——
Silylamines in organic synthesis: preparation and some reactions of N,C-dilithiosilylamines
作者:Stephanie A. Burns、Robert J.P. Corriu、Vilam Huynh、Joël J.E. Moreau
DOI:10.1016/s0022-328x(00)99805-x
日期:1987.10
The dimetallation of some olefinic and aromatic N-trimethylsilylamines has been examined. Treatment with a two molar proportion of n-butyllithium gives organodimetallic reagents, which react with trimethylchlorosilane to give N,N,C-tris(trimethylsilyl)amines in 45 to 65% yields. The dianonic reagent obtained from (trimethylsilyl)(allyl)amine reacts with benzoyl chloride, N,N-dimethylformamide, eth
A new synthesis of N,N-bis(trimethylsilyl)enamines from straight chain olefinic amines has been devised which makes use of iron pentacarbonyl photocatalysed isomerisation. Complete conversion of the olefinic amines to the enamines was observed for substituted N,N-bis(trimethylsilyl)allylamines and non-allylic amines. The enamines obtained are potential sources of aldehydes and precursors of substituted