Catalyst for nucleophilic aromatic substitutions

Details Catalyst for nucleophilic aromatic substitutions Catalyst for nucleophilic aromatic substitutions

1994-07-19

1996-02-20

Gibson, Sharon

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Organic compound containing

502150, 502162, 502200, 502208, B01J 3100

Patent

active

054928753

ABSTRACT:
A catalyst consisting essentially of a quaternary ammonium compound, comprising at least one linear or branched alkoxypolyoxyalkyl chain, and a quaternary ammonium or phosphonium salt or a polyether, or a mixture of each of the specified compounds, is suitable for accelerating, or making possible for the first time, many nucleophilic aromatic substitutions.

REFERENCES:
patent: 3123641 (1964-03-01), Longley
patent: 3141905 (1964-07-01), Longley
patent: 4069262 (1978-01-01), Kunz
patent: 4140719 (1979-02-01), Tull et al.
patent: 4287374 (1981-09-01), North
patent: 4694104 (1987-09-01), Chakrabarti et al.

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