Aldehyde process

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

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

568459, 568464, C07C 4545

Patent

active

058012923

ABSTRACT:
A process for condensing aldehydes where an aldehyde having an a hydrogen and having the formula R.sub.1 CHO, wherein R.sub.1 is selected from alkyl having one to twelve carbon atoms and aralkyl having one to fourteen carbon atoms, is combined with hydrated MgO to form a reaction product comprising an aldol of said aldehyde, the unsaturated aldehyde derived by dehydration of said aldol, or mixtures thereof. In a second embodiment, a first composition selected from aldehydes containing an a hydrogen and having the formula R.sub.1 CHO, wherein R.sub.1 is as defined above, is combined with a second composition selected from aldehydes having the formula R.sub.2 CHO, wherein R.sub.2 is selected from H, alkyl having one to twelve carbon atoms, and aralkyl having one to fourteen carbon atoms, and with hydrated MgO, to form a reaction product mixture comprising an aldol of said aldehyde, the unsaturated aldehyde derived by dehydration of said aldol, or mixtures thereof. The aldol or aldehyde formed may be separated from the reaction product mixture, and recovered or treated as desired, or the reaction product mixture may be further directly treated, such as by hydrogenation, to produce a desired product admixture.

REFERENCES:
patent: 4263181 (1981-04-01), Wagner et al.
patent: 5144089 (1992-09-01), Arena et al.
Tsuji H et al, "Self-Condensation of n-Butyraldehyde over Solid Base Catalysts;" J. Catal.; 1994; vol. 148 (2) ; pp. 759-770.
Zhang G et al, "Aldol Addition of Butyraldehyde over Solid Base Catlaysts"; Bull. Chem. Soc. Japan; 1989; vol. 62 (6); pp. 2070-2072.
Chemical Abstracts, vol. 126, No. 21; Abstract No. 277185d, Ichikawa M et al, 1997.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Aldehyde process does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Aldehyde process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Aldehyde process will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-271408

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.