Processes for producing aldehyde acids or salts

Details Processes for producing aldehyde acids or salts Processes for producing aldehyde acids or salts

1997-04-15

1999-07-06

Barts, Samuel

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

Organic compounds

Carboxylic acids and salts thereof

562577, 562521, 502162, C07C 5114

Patent

active

059199784

ABSTRACT:
This invention relates in part to processes for producing one or more substituted or unsubstituted aldehyde acids or salts, e.g., 5-formylvaleric acid or salt, which comprises subjecting one or more substituted or unsubstituted alkadienes, e.g., butadiene, to hydroxycarbonylation in the presence of a hydroxycarbonylation catalyst, e.g., a metal-organophosphorus ligand complex catalyst, and optionally neutralization with a base to produce one or more substituted or unsubstituted unsaturated acids or salts, e.g., pentenoic acid or salt, and subjecting said one or more substituted or unsubstituted unsaturated acids or salts to hydroformylation in the presence of a hydroformylation catalyst, e.g., a metal-organophosphorus ligand complex catalyst, to produce said one or more substituted or unsubstituted aldehyde acids or salts and/or one or more substituted or unsubstituted epsilon caprolactam precursors. This invention also relates in part to reaction mixtures containing one or more substituted or unsubstituted aldehyde acids or salts as the principal product(s) of reaction.

REFERENCES:
patent: 3887595 (1975-06-01), Nozaki
patent: 4737588 (1988-04-01), Billing et al.
patent: 4947003 (1990-08-01), Davis et al.
patent: 5059710 (1991-10-01), Abatjoglou et al.
patent: 5731473 (1998-03-01), Bryant et al.

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