US 12,116,469 B2
Sterically hindered amine stabilizer mixtures
Manuele Vitali, Pontecchio Marconi BO (IT); Elisa Montroni, Pontecchio Marconi BO (IT); Matteo Pori, Pontecchio Marconi BO (IT); Elena Capito, Pontecchio Marconi BO (IT); and Christian Kranemann, Schweizerhalle (CH)
Assigned to BASF SE, Ludwigshafen am Rhein (DE)
Appl. No. 17/437,176
Filed by BASF SE, Ludwigshafen am Rhein (DE)
PCT Filed Mar. 4, 2020, PCT No. PCT/EP2020/055754
§ 371(c)(1), (2) Date Sep. 8, 2021,
PCT Pub. No. WO2020/182587, PCT Pub. Date Sep. 17, 2020.
Claims priority of application No. 19161580 (EP), filed on Mar. 8, 2019.
Prior Publication US 2023/0159727 A1, May 25, 2023
Int. Cl. C08K 5/3492 (2006.01); C07D 401/14 (2006.01)
CPC C08K 5/34926 (2013.01) [C07D 401/14 (2013.01); C08K 2201/014 (2013.01)] 14 Claims
 
14. A process for the preparation of a compound of formula (1′)

OG Complex Work Unit Chemistry
comprising subjecting a compound of formula (2)

OG Complex Work Unit Chemistry
to an oxidation reaction, followed by a hydrogenation reaction,
wherein
R1, R2, R3, R4, R′1, R′2, R′3 and R′4 are independently from each other hydrogen or C1-C18 alkyl,
X1 and X′1 are independently from each other C2-C12 alkylene or C3-C12 alkylene substituted by hydroxyl;
one to five radicals of the radicals Z1, Z2, Z3, Z4, Z5 and Z6 are a group of formula —O—CH2—CH2—CH2—R and the remaining of the radicals Z1, Z2, Z3, Z4, Z5 and Z6 are hydrogen or hydroxy,
one to five radicals of the radicals Y1, Y2, Y3, Y4, Y5 and Y6 are a group of formula —CH2—CH═CH—R and the remaining of the radicals Y1, Y2, Y3, Y4, Y5 and Y6 are hydrogen, and
R is hydrogen or C1-C15 alkyl.