Selective semi-hydrogenation of allene
AssigneeFirmenich SA
InventorLionel Saudan
Life of this patent
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Abstract
The present invention relates to the field of catalytic hydrogenation and, more particularly, to the semi-hydrogenation of an allene into the corresponding alkene in the presence of a heterogenous catalyst.
Claims14
A process for the semi-hydrogenation, using molecular H2, of an allene of formula
- wherein R1 is a C2-30 hydrocarbon optionally comprising one to three oxygen atoms and/or one to two nitrogen atoms and/or one sulphur atom;
- into the corresponding alkene of formula
- wherein R1 have the same meaning as defined above;
- wherein said process is carried out in the presence of a heterogenous catalyst.
A compound being selected from the group consisting of 4,8-dimethylnona-1,2,7-trien-4-ol, (E)-5-methylocta-1,2,5-trien-4-ol, (6R)-6,10-dimethylundeca-1,2,9-trien-4-ol, 2-methyl-3-phenylhexa-4,5-dien-3-ol, 1-(propa-1,2-dien-1-yl)cyclohexan-1-ol, 1-(propa-1,2-dien-1-yl)cyclooctan-1-ol, 2-(propa-1,2-dien-1-yl)decahydronaphthalen-2-ol and (4aS,8aS)-2-(propa-1,2-dien-1-yl)decahydronaphthalen-2-ol.
Dependencies are inferred from the claim text.