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US 2026/0200822 A1Published application
Process for preparing alpha,beta-unsaturated carbonyl compound
AssigneeFirmenich SA
InventorsLucia BONOMO, Denis JACOBY, Fabien FONTENY, Fabrice KELLER
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Abstract
Disclosed herein is a process for the oxidation of an allylic alcohol into an alpha,beta-unsaturated carbonyl compound in a presence of zirconium catalyst and a hydrogen acceptor.
Claims16
A process for the oxidation of an allylic alcohol into an alpha,beta-unsaturated carbonyl compound, wherein said process is carried out in the presence of
- i) a catalyst of formula
- wherein L is a bisphenolate, a triphenolate or a calixarene with at least 4 phenol units, L′ is a phenolate, X is an anionic ligand, p is 1 when n is 3 or p is 2 when n is 2 or p is 0 when n is 4 and r is 2 when L is a bisphenolate or r is 1 when L is a triphenolate or r is 0 when L is a calixarene with at least 4 phenol units;
- and
- ii) a hydrogen acceptor.
1 more element
A catalytic system comprising or consisting of
- i) a catalyst of formula
- wherein L is a bisphenolate, a triphenolate or a calixarene with at least 4 phenol units, L′ is a phenolate, X is an anionic ligand, p is 1 when n is 3 or p is 2 when n is 2 or p is 0 when n is 4 and r is 2 when L is a bisphenolate or r is 1 when L is a triphenolate or r is 0 when L is a calixarene with at least 4 phenol units;
- and
- ii) a hydrogen acceptor.
1 more element
Dependencies are inferred from the claim text.