Production of di-unsaturated carboxylic acids

Details Production of di-unsaturated carboxylic acids Production of di-unsaturated carboxylic acids

1975-12-30

1978-04-18

Myers, Jane S.

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

Organic compounds

Carboxylic acid esters

2604055, 2604659, 260526N, 560214, C07C 6730

Patent

active

040852750

ABSTRACT:
The invention concerns dehydrogenation of carboxylic acids, lactones, esters, nitriles, the carbon skeleton of the feed material being characterized as containing mono-unsaturation or alternatively functional groups such as hydroxyl which convert under process conditions to unsaturation, the dehydrogenation reaction being conducted in the presence of a contact catalyst comprising a carbonaceous layer effective for the dehydrogenation of mono-unsaturated reactants to di-unsaturated products. Another aspect of the invention involves production of the mono-unsaturated reactants. In particular, the invention provides a route to sorbic acid, for example by dehydrogenation of hexenoic acids or esters thereof.

REFERENCES:
patent: 1374589 (1921-04-01), Levey
patent: 2945057 (1960-07-01), McDaniel et al.

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