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Self-assembled ionophores as phase transfer catalysts

✍ Scribed by Allison L. Marlow; Jeffery T. Davis

Book ID
104261344
Publisher
Elsevier Science
Year
1999
Tongue
French
Weight
263 KB
Volume
40
Category
Article
ISSN
0040-4039

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✦ Synopsis

The nucleoside, 5'-(t-butyl-dimethylsilyl)-2',3'-O-isopropylidene isoG 1, catalyzes the SN2 reactions of alkali and ammonium iodides with dodecyl mesylate 2 under both liquid-liquid and solid-liquid phase transfer conditions. IsoG 1 self-associates to give a complex that extracts the salts into CDC13 solution. Sodium iodide, in the presence of isoG 1, reacts faster with 2 than the other iodides under solid-liquid conditions. This reactivity difference is attributed to the open-faced structure of the ionophore-M + complex under solid-liquid conditions.

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