Phase transfer catalysts

Details Phase transfer catalysts Phase transfer catalysts

1983-04-28

1984-07-17

Jiles, Henry R.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548486, C07D21374

Patent

active

044607784

ABSTRACT:
Branched alkyldiorganoaminopyridinium salts have been found useful as phase transfer catalysts for facilitating nucleophilic aromatic substitution. For example, the 2-ethylhexyl salts of dialkylaminopyridine, can be used as stable phase transfer catalysts for making aromatic etherimides by reacting substituted phthalimides and alkali metal phenoxides in the presence of a nonpolar organic solvent.

REFERENCES:
patent: 3852242 (1974-12-01), White
patent: 4257953 (1981-03-01), Williams et al.
patent: 4273712 (1981-06-01), Williams
Cheek, et al. "Preparation and Characterization of a Substituted Alkylpyridinium Chloroaluminate Molten Salt System," Inorganic Chemistry vol. 21, Oct. 1982, pp. 3581-3584.
Cas Online.TM., Search Statistics-P035038A, American Chemical Society (1983).

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