Method for the production of aldehydes

Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing

Reexamination Certificate

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C568S451000, C568S454000

Reexamination Certificate

active

06995293

ABSTRACT:
The present invention relates to a hydroformylation method by conversion of olefins or olefinically unsaturated compounds in the presence of at least one rhodium compound and in the presence of sulfonated arylphosphines in ionic liquids, which are based on a quaternary singly-charged ammonium ion or the equivalent of a multiply charged ammonium ion and organic sulfonates or sulfates.

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