Indium(I) bromide-mediated coupling of dibromoacetonitrile with aldehydes followed by Boord elimination of bromine and oxygen of β-bromo alkoxides for preparation of 3-organyl-2-alkenenitriles
摘要:
The organoindium compound derived from indium monobromide and dibromoacetonitrile reacts with carbonyl compounds to afford the corresponding 2-bromo-2-cyano-indium(III) alkoxide. The action of a second equivalent of indium monobromide onto the alkoxides derived from aldehydes promotes the Boord elimination of the beta-related oxygen and bromine atoms leading to 2-alkenenitriles. (c) 2006 Elsevier B.V. All rights reserved.
Indium(I) bromide-mediated coupling of dibromoacetonitrile with aldehydes followed by Boord elimination of bromine and oxygen of β-bromo alkoxides for preparation of 3-organyl-2-alkenenitriles
作者:Clovis Peppe、Paola de Azevedo Mello、Rafael Pavão das Chagas
DOI:10.1016/j.jorganchem.2006.01.039
日期:2006.5
The organoindium compound derived from indium monobromide and dibromoacetonitrile reacts with carbonyl compounds to afford the corresponding 2-bromo-2-cyano-indium(III) alkoxide. The action of a second equivalent of indium monobromide onto the alkoxides derived from aldehydes promotes the Boord elimination of the beta-related oxygen and bromine atoms leading to 2-alkenenitriles. (c) 2006 Elsevier B.V. All rights reserved.
Indium(I) bromide-mediated bromocyanomethylation of carbonyl compounds
作者:J.A. Nóbrega、Simone M.C. Gonçalves、C. Peppe
DOI:10.1016/s0040-4039(00)00960-6
日期:2000.7
Bromocyanomethylation of a variety of carbonyl compounds to produce the corresponding 2-bromo-3-hydroxynitriles has been achieved in moderate to good yields by the action of dibromoacetonitrile and indium(I) bromide. Moderate diastereoselectivity was observed. Exclusive mono-coupling at the carbonyl group was found with 1,2-diketones and α-haloketones.