Method for producing cyclopentanone and...

C - Chemistry – Metallurgy – 07 – C

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C07C 51/377 (2006.01) C07C 45/54 (2006.01) C07C 49/395 (2006.01) C07C 61/20 (2006.01) C07C 67/333 (2006.01) C07C 69/74 (2006.01)

Patent

CA 2303372

The invention relates to a method for producing cyclopentanone and cyclopentene-1-carboxylic acid or their esters of formula (I) COOR, wherein R represents hydrogen or an aliphatic radical with 1 to 6 C-atoms or a cycloaliphatic, araliphatic or aromatic radical with 6 to 12 C-atoms. According to said method, compounds of formula (II) X-(CH2)4-COOR, wherein X represents a formyl- or hydroxymethyl radical and R has the meaning given above, and/or compounds which can be converted into compounds of formula (II) with water or alcohols ROH under the reaction conditions are heated in the gaseous or liquid phase to temperatures of 200 to 450 ~C in the presence of heterogeneous oxidic catalysts.

L'invention concerne un procédé de production de cyclopentanone et d'acide cyclopentène-1-carboxylique et de leurs esters de formule (I). Dans la formule (I), R représente hydrogène, un reste aliphatique ayant 1 à 6 atomes de carbone ou un reste cycloaliphatique, araliphatique ou aromatique ayant 6 à 12 atomes de carbone. Le procédé selon l'invention est caractérisé en ceci qu'on chauffe dans la phase gazeuse ou liquide, à des températures comprises entre 200 et 450 ·C et en présence de catalyseurs oxydiques hétérogènes, des composés de formule X-(CH¿2?)¿4?-COOR (II) - formule dans laquelle X représente un reste formyle ou hydroxyméthyle et R a la signification indiquée plus haut - ou des composés pouvant, avec de l'eau ou des alcools ROH, se transformer dans les conditions de réaction en composés de formule (II).

LandOfFree

Say what you really think

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

Rating

Method for producing cyclopentanone and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

     

Profile ID: LFCA-PAI-O-1523159

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