- Stereospecific diaza-Cope rearrangement as an efficient tool for the synthesis of DPEDA pyridine analogs and related C2-symmetric organocatalysts
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A simple and efficient synthesis of enantiomerically pure (1S,2S)-1,2-di(pyridin-2-yl)- and (1R,2R)-1,2-di(pyridin-4-yl)-ethane-1,2-diamines from commercial picolinaldehyde or isonicotinaldehyde and 2,2′-((1S,2S)-1,2-diaminoethane-1,2-diyl)diphenol (HPEN)
- Kucherenko,Kostenko,Gerasimchuk,Zlotin
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p. 7028 - 7033
(2017/09/01)
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- One-pot synthesis of imidazoles from aromatic nitriles with nickel catalysts
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Nickel(0) catalysts were used to produce substituted imidazoles in good to high yields using benzonitrile, p-substituted benzonitriles and 4-cyanopyridine as starting materials. The Royal Society of Chemistry 2011.
- Garcia, Juventino J.,Zerecero-Silva, Paulina,Reyes-Rios, Grisell,Crestani, Marco G.,Arevalo, Alma,Barrios-Francisco, Rigoberto
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supporting information; experimental part
p. 10121 - 10123
(2011/10/09)
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- Regioselective synthesis of cis- and trans-2,4,5-triarylimidazolines and 2,4,5-triarylimidazoles from available reagents
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Novel data were obtained concerning the reaction of aromatic aldehydes with ammonia. A preparative method for the synthesis of new substituted 1,3,5-triaryl-2,4-diazapenta-1,4-dienes was developed. These products are the starting reactants for syntheses of cis- and trans-2,4,5-triaryl-2-imidazolines and 2,4,5-triarylimidazoles.
- Lozinskaya,Tsybezova,Proskurnina,Zefirov
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p. 674 - 678
(2007/10/03)
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- Reaction of aromatic aldehydes with ammonium acetate
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By reaction of aromatic aldehydes with ammonium acetate a series of 1,2-diaryl-1,2-diamino-ethanes and their derivatives was obtained. The mechanism of reaction was suggested and its principal stages were proved. Reactions with ammonium acetate of aromatic aldehydes containing ortho-substituents resulted in the corresponding 2,4,5-triaryl-4,5-dihydroimidazoles.
- Proskurnina,Lozinskaya,Tkachenko,Zefirov
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p. 1149 - 1153
(2007/10/03)
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