Investigations on the Formation of 4-Aminobicyclo[2.2.2]octanones
Benzylidene acetone reacts with thiocyanates derived from secondary amines in a one-pot reaction to give 4-aminobicyclo[2.2.2]octan-2-ones. The reaction mixture was investigated for the presence of possible intermediates using GC-MS. These intermediates -
Seebacher, Werner,Kroepfl, Dietmar,Belaj, Ferdinand,Saf, Robert,Huefner, Antje,Weis, Robert
p. 676 - 688
(2007/10/03)
Cyclodimerizations of Alkyl Styryl Ketones and Their Silyl Enol Ethers by Use of Iron Carbonyls
The reaction of alkyl styryl ketones with Fe3(CO)12 gives 3-acyl-4,5-diphenylcyclohexanones in a manner of cyclodimerization. (η4-Enone)Fe(CO)3 complexes serve as catalyst for this reaction.Silyl enol ethers of the same ketones afford 4-a
Ueda, Tatsuo,Otsuji, Yoshio
p. 1635 - 1638
(2007/10/02)
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With Li+ or TBA+ as counter ion the electrodimerization of phenylpent-2-en-3-one occurs by a 0.2 F initiation. This reaction is regio- and stereospecific with Li+, the radical autocatalytic reaction gave 100% yield of a new dimer. If TBA+ is used the primary step is an ion-substrate reaction giving two isomers in equal proportion. All reaction products were structurally determined by 2D-NMR (SECSY or COSY and NOESY sequence).
Fournier,Davoust,Basselier
p. 5677 - 5683
(2007/10/02)
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