Reaction products from αβ-unsaturated ketones and aliphatic diamines or dithiols

1971 ◽  
Vol 0 (0) ◽  
pp. 3441-3445 ◽  
Author(s):  
Kálmán Hideg ◽  
Douglas Lloyd
Keyword(s):  
Reaction Products ◽  
Unsaturated Ketones ◽  
Aliphatic Diamines

On the Stereoselectivity of the (-)-Dimenthyl Malonate Addition to α,β-Unsaturated Ketones

1996 ◽  
Vol 61 (12) ◽  
pp. 1805-1814 ◽  
Author(s):  
Ľubomír Šebo ◽  
Juraj Alföldi ◽  
Grety Rihs ◽  
Štefan Toma
Keyword(s):  
Michael Addition ◽  
Pure State ◽  
Nmr Spectra ◽  
Reaction Products ◽  
X Ray ◽  
Unsaturated Ketones ◽  
H Nmr ◽  
The Michael Addition

The Michael addition of (-)-dimenthyl malonate to eight α,β-unsaturated ketones has been studied. The ratio of diastereomers was calculated on the basis of the 1H NMR spectra of the crude reaction products. The diastereomer excess varied from 10 to 50%, depending on the structure of the starting enone. The pure diastereomer produced by addition of (-)-dimenthyl malonate to 2-benzylidene-1,4-indandione was isolated by repeated crystallization. X-ray analysis has shown that the isomer is (-)-dimenthyl (R)-2-[1-(1,3-dioxoindan-2-yl)-1-phenylmethyl]malonate (5a). The predominating diastereomers of (-)-dimenthyl(3-ferrocenyl-3-oxophenylpropyl)malonate (1a) and (-)-dimenthyl-2-(1-(1,3-dioxo[3]ferrocenophan-2-yl)-1-phenyl malonate (6a) were also isolated in pure state by careful crystallization.

?,?-unsaturated ketones in substitutive addition with 2-alkylfurans and some transformations of the reaction products

1981 ◽  
Vol 17 (12) ◽  
pp. 1158-1161 ◽  
Author(s):  
Sh. T. Akhmedov ◽  
N. S. Sadykhov ◽  
R. Sh. Akhmedova ◽  
N. S. Zefirov
Keyword(s):  
Reaction Products ◽  
Unsaturated Ketones ◽  
Substitutive Addition

Reaction of Dimerized Fatty Acid with Aliphatic Diamines and Properties of Reaction Products

2005 ◽  
Vol 78 (7) ◽  
pp. 1122-1125 ◽  
Author(s):  
E. V. Fomina ◽  
G. N. Chervyakova ◽  
Yu. A. Kurskii ◽  
A. P. Sineokov
Keyword(s):  
Fatty Acid ◽  
Reaction Products ◽  
Dimerized Fatty Acid ◽  
Aliphatic Diamines

Methods for preparation of heterobifunctional nitroxides: α,β-unsaturated ketones, β-ketoesters, cyano-nitro-derivatives

1982 ◽  
Vol 60 (12) ◽  
pp. 1432-1438 ◽  
Author(s):  
H. Olga Hankovszky ◽  
Kálmán Hideg ◽  
László Lex ◽  
Gyula Kulcsár ◽  
H. Anna Halász
Keyword(s):  
Methyl Ketones ◽  
Reaction Products ◽  
Unsaturated Ketones ◽  
Nitro Derivatives

The reactions of 1-oxyl-2,2,5,5-tetramethyl-3-pyrroline-3-carboxaldehyde (1), 1-oxyl-2,2,5,5-tetramethyl-3-cyano-3-pyrroline (2), ethyl 1-oxy(-2,2,5,5-tetramethyl-3-pyrroline-3-carbonyl carbonate (3), and N-(1-oxyl-2,2,5,5-tetramethyl-3-pyrroline-3-carbonyl)imidazolide (4) are investigated with several nucleophiles (dialkylcadmium, diethyl sodio-malonate, magnesium enolate of ethyl hydrogen malonate, nitromethane-anion) to obtain α,β-unsaturated ketones, β-ketoesters, or conjugated reaction products. Aldehyde 1 is reacted with several methyl ketones (acetylmethylene-triphenylphosphorane, acetophenone, 2-acetylpyridine, 4-phenyl-3-butyn-2-one) to give spin labeled polyenones. The reaction of 4-(1-oxyl-2,2,5,5-tetramethyl-3-pyrroline-3-yl)-2-buten-2-one (24a) with ethylenediamine gives 7,14-bis-(1-oxyl-2,2,5,5-tetramethyl-3-pyrroline-3-yl)-5,12-dimethyl-1,4,8,11-tetraazatetradeca-7,14-diene biradical (25).

Reactions of dodecacarbonyltriruthenium with ?,?-unsaturated ketones. Crystal and molecular structures of two reaction products

1993 ◽  
Vol 42 (7) ◽  
pp. 1228-1235 ◽  
Author(s):  
L. V. Rybin ◽  
S. V. Osintseva ◽  
A. S. Batsanov ◽  
Yu. T. Struchkov ◽  
P. V. Petrovskii ◽  
...  
Keyword(s):  
Molecular Structures ◽  
Reaction Products ◽  
Unsaturated Ketones ◽  
Crystal And Molecular Structures

Reactions of α,β-unsaturated ketones with arylacetonitriles

1987 ◽  
Vol 52 (4) ◽  
pp. 1021-1025 ◽  
Author(s):  
Mohammad M. Al-Arab ◽  
Ali M. Issa
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Room Temperature ◽  
Sodium Ethoxide ◽  
Reaction Products ◽  
Mass Spectral Data ◽  
Mass Spectral ◽  
Unsaturated Ketones ◽  
Single Diastereomer ◽  
Lanthanide Shift Reagents ◽  
Diastereomeric Purity

1,3-Diaryl-2-propene-1-ones I react with arylacetonitriles II in the presence of sodium ethoxide at room temperature to give a single diastereomer of the corresponding 2,3-diaryl-4-aroylbutyronitriles III. The structures of the reaction products were established by infrared, nuclear magnetic resonance, and mass spectral data as well as elemental analysis. The diastereomeric purity was determined by NMR measurements using lanthanide shift reagents. The observed resonances did not show any resolved diastereomeric proton signals.

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