C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/278.1, 260/2
C07D 211/56 (2006.01) C07D 211/58 (2006.01) C07D 211/94 (2006.01)
Patent
CA 1283107
ABSTRACT OF THE INVENTION The present invention is directed to a process for producing compounds of the formula: (I) Image wherein: R is C1-C18 alkyl, C5-C6 cycloalkyl or C7-C9 aralkyl; R1, R2, R3 and R4 are the same or different and are C1-C8 alkyl; A is hydrogen, hydroxy, C1-8 alkyl, C1 C8 alkyloxy, C2-C10 alkylcarbonyl or arylcarbonyl; and n is 1, 2, 3 or 4; with the proviso that when n is 2, 3, or 4,the R1, R2, R3, R4 and A substituents of the pyridine rings may each independently be different members within the scope of their definitions; which process comprises reacting an amine of the formula R(NH2)n, wherein R and n are as defined above, with at least one 2,2,6,6-tetraalkyl-4-piperidone of the formula: Image ( II) wherein A, R1, R2, R3 and R4 are as defined above; in the presence of a palladium catalyst employing a reaction medium selected from the group consisting of water, C1- C10 aliphatic alcohols, C2-C6 aliphatic glycols and mixtures thereof.
506610
Greenfield Harold
Malz Russell Edward Jr.
Gowling Lafleur Henderson Llp
Uniroyal Chemical Company Inc.
LandOfFree
Process for the production of 2,2,6,6-tetraalkyl-4-... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for the production of 2,2,6,6-tetraalkyl-4-..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the production of 2,2,6,6-tetraalkyl-4-... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1191739