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US 2021/0363084 A1Published application
Etherification Process
AssigneeBp P.L.C.
InventorsJon DEELEY, Gareth ARMITAGE
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Abstract
The present invention relates to a process for preparing ethers, particularly unsymmetrical ethers, and preferably ethers suitable for use as base stocks for lubricant compositions. In particular, the process involves the reaction of an α,β-unsaturated aldehyde with a trihydrocarbyl orthoester to form an α,β-unsaturated acetal and conversion of the α,β-unsaturated acetal to an ether through hydrogenation and hydrogenolysis.
Claims24
A process for preparing an ether, said process comprising the steps of:
- i) contacting an α,β-unsaturated aldehyde with a trihydrocarbyl orthoester to form an α,β-unsaturated acetal;
- and
- ii) subjecting the α,β-unsaturated acetal obtained from step i) to hydrogenation and hydrogenolysis to hydrogenate at the α- and β-positions of the α,β-unsaturated acetal and to convert the acetal group to an ether.
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Dependencies are inferred from the claim text.