| 21. | Quaternary ammonium cations have four organic groups attached to the nitrogen atom.
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| 22. | Cyclization via electrophilic addition of the GGPP affords Iabdanyl cation.
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| 23. | The name of each substitution is prefixed to the hydride cation name.
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| 24. | Electrophilic reactions, like forming the tetraalkylammonium cation, difficult.
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| 25. | The second step leads to an oxocarbocation intermediate, the sialosyl cation.
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| 26. | Here the iodinating agent is the triiodine cation and the base is.
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| 27. | Ionophores selective for cations and anions have found many applications in analysis.
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| 28. | Following it in 1980, was a similar method for cation chromatography.
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| 29. | Dissolution occurs when the reduced cation is unstable in the solid material.
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| 30. | Like crown ethers, cyclen compounds are capable of selectively binding cations.
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