Phase transfer catalysts
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United States of America Patent
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Nov 27, 1990
Issued Date -
N/A
app pub date -
Feb 9, 1987
filing date -
Jan 6, 1986
priority date (Note) -
Expired
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Abstract
N-secondary-alkyldiorganoaminopyridinium salts are disclosed which are useful as phase transfer catalysts for facilitating preparation of fluoroaromatic compounds (such as fluoronitrobenzene compounds) from the corresponding chloroaromatic compounds (such as chloronitrobenzene compounds).
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