Efficient syntheses of functionalized piperidines through extremely regioselective Rh-catalyzed cyclohydrocarbonylation of amido-ω,ω′-dienes
摘要:
The highly regioselective cyclohydrocarbonylation of 4-amido-1,6-heptadienes catalyzed by Rh-BIPHEPHOS complex gives functionalized piperidines quantitatively, which serve as versatile intermediates for the syntheses of a variety of piperidine and quinolizidine alkaloids. Reaction of 3-Boc-amino-1,5-hexadiene affords the corresponding dehydropiperidine-aldehyde exclusively via site and regioselective hydroformylation. Possible mechanisms for these reactions are proposed. (C) 1998 Elsevier Science Ltd. All rights reserved.
BARBOT, FRANCIS, TETRAHEDRON LETT., 30,(1989) N, C. 185-186
作者:BARBOT, FRANCIS
DOI:——
日期:——
N-tosyl iminoethers et iminocarbonates d'alkyle : Synthons d'amines primaires a structure ramifiee
作者:Francis Barbot
DOI:10.1016/s0040-4039(00)95154-2
日期:1989.1
Efficient syntheses of functionalized piperidines through extremely regioselective Rh-catalyzed cyclohydrocarbonylation of amido-ω,ω′-dienes
作者:Iwao Ojima、Donna M Iula、Maria Tzamarioudaki
DOI:10.1016/s0040-4039(98)00848-x
日期:1998.6
The highly regioselective cyclohydrocarbonylation of 4-amido-1,6-heptadienes catalyzed by Rh-BIPHEPHOS complex gives functionalized piperidines quantitatively, which serve as versatile intermediates for the syntheses of a variety of piperidine and quinolizidine alkaloids. Reaction of 3-Boc-amino-1,5-hexadiene affords the corresponding dehydropiperidine-aldehyde exclusively via site and regioselective hydroformylation. Possible mechanisms for these reactions are proposed. (C) 1998 Elsevier Science Ltd. All rights reserved.