Production of alkyl aralkyl ketones from allylic-aralkenyl...

C - Chemistry – Metallurgy – 07 – C

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C07C 45/51 (2006.01) C07C 29/32 (2006.01) C07C 49/255 (2006.01)

Patent

CA 2278729

The process forms an alkyl aralkyl ketone from an aralkenyl secondary alcohol having an allylic double bond relative to the hydroxycarbinyl group, and having the allylic double bond positioned between the aryl moiety and the hydroxycarbinyl group. This is accomplished by heating the alcohol in a chemically indifferent organic liquid medium to which a catalytic quantity of an iron polycarbonyl has been added, so that an internal rearrangement occurs. Among the ketones that can be efficiently produced in this manner is non- steroidal antiinflammatory agent, 4-(6'-methoxy-2'-naphthyl)-butan-2-one, generally known as nabumetone.

La présente invention se rapporte à un procédé de fabrication d'une cétone d'alkyl-aralkyle à partir d'un alcool secondaire d'aralkényle possédant une double liaison allylique relative au groupe hydroxycarbinyle et ayant cette double liaison allylique positionnée entre la fraction aryle et le groupe hydroxycarbinyle. Ledit procédé consiste à chauffer l'alcool dans un milieu liquide organique chimiquement indifférent auquel on a ajouté une quantité catalytique d'un polycarbonyle de fer, de façon à ce qu'un réarrangement interne se produise. Parmi les cétones qu'il est possible de produire efficacement de cette manière, on compte un agent anti-inflammatoire non stéroïdien, la 4-(6'-méthoxy-2'-naphtyl)-butane-2-one, connu généralement sous le nom de nabumétone.

LandOfFree

Say what you really think

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

Rating

Production of alkyl aralkyl ketones from allylic-aralkenyl... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Production of alkyl aralkyl ketones from allylic-aralkenyl..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Production of alkyl aralkyl ketones from allylic-aralkenyl... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1617807

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