Syntheses of N-heterocyclic carbenes and intermediates therefor

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United States of America Patent

PATENT NO 9890125
SERIAL NO

14759595

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Abstract

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A method of preparing a 2,6 disubstituted anilines includes, reacting a 2-amino isophthalic acid diester with sufficient Grignard reagent R2CH2MgX to form the corresponding diol product, dehydrating the diol product to the corresponding dialkene; and hydrogenating the diol product to form the corresponding aniline. The 2,6 disubstituted anilines can be used to produce N-Heterocyclic Carbenes (NHCs). The NHCs can find application in various fields such as organic synthesis, catalysis and macromolecular chemistry. Palladium catalysts containing the NHCs are also described.

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Patent Owner(s)

Patent OwnerAddress
UMICORE AG & CO KG63457 HANAU-WOLFGANG

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Meiries, Sebastien Fife, GB 5 4
Nolan, Steven P Fife, GB 29 223

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