About: Very Strong Organosuperbases Formed by Combining Imidazole and Guanidine Bases: Synthesis, Structure, and Basicity     Goto   Sponge   NotDistinct   Permalink

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  • New structural motives for organosuperbases, that are easy to prepare and highly basic are urgently required in many areas of chemistry. The synthesis of N,N'-bis(imidazolyl) guanidine bases (BIG bases) is reported. Their pK(alpha) values are determined as 26.1-29.3 in THF. They are thus probably the strongest known phosphorous-free organic bases both in solution and in the gas phase. Calculations help to determine the structural and electronic factors giving rise to the high basicity.
  • New structural motives for organosuperbases, that are easy to prepare and highly basic are urgently required in many areas of chemistry. The synthesis of N,N'-bis(imidazolyl) guanidine bases (BIG bases) is reported. Their pK(alpha) values are determined as 26.1-29.3 in THF. They are thus probably the strongest known phosphorous-free organic bases both in solution and in the gas phase. Calculations help to determine the structural and electronic factors giving rise to the high basicity. (en)
Title
  • Very Strong Organosuperbases Formed by Combining Imidazole and Guanidine Bases: Synthesis, Structure, and Basicity
  • Very Strong Organosuperbases Formed by Combining Imidazole and Guanidine Bases: Synthesis, Structure, and Basicity (en)
skos:prefLabel
  • Very Strong Organosuperbases Formed by Combining Imidazole and Guanidine Bases: Synthesis, Structure, and Basicity
  • Very Strong Organosuperbases Formed by Combining Imidazole and Guanidine Bases: Synthesis, Structure, and Basicity (en)
skos:notation
  • RIV/61388963:_____/14:00429647!RIV15-AV0-61388963
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  • I
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  • 5
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  • Jahn, Ullrich
  • Kunetskiy, Roman Alexejevič
  • Vazdar, Katarina
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  • 53303
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  • RIV/61388963:_____/14:00429647
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  • guanidine; organosuperbases; synthetic methods; basicity; UV/Vis spectroscopy (en)
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  • DE - Spolková republika Německo
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  • [B782BA9370E8]
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  • Angewandte Chemie - International Edition
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  • 53
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  • Jahn, Ullrich
  • Kunetskiy, Roman Alexejevič
  • Leito, I.
  • Saame, J.
  • Kaupmees, K.
  • Vazdar, Katarina
http://linked.open...ain/vavai/riv/wos
  • 000336504500046
issn
  • 1433-7851
number of pages
http://bibframe.org/vocab/doi
  • 10.1002/anie.201307212
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