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US 9,868,681 B2Granted
Production method for γ,δ-unsaturated alcohols
AssigneeKuraray Co., Ltd.
InventorYutaka Suzuki
Life of this patent
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Abstract
Provided is a method from which a γ,δ-unsaturated alcohol having a much more smaller amount of inclusion of formic acid and a formic acid ester and having a high purity can be obtained in a high yield. Specifically, provided is a method for producing a γ,δ-unsaturated alcohol by causing a reaction between an α-olefin and formaldehyde, the method including a step of bringing a reaction liquid obtained through the reaction into contact with an alkaline aqueous solution so as to provide an aqueous solution having pH of 9 to 13.
Claims12
A method for producing a γ,δ-unsaturated alcohol of formula (II):
- the method comprising:
- reacting formaldehyde with an α-olefin of formula (I):
- without a basic compound to obtain a reaction liquid,
- and
- contacting the reaction liquid with an alkaline aqueous solution so as to obtain an aqueous solution having pH of 9 to 13 and to form an organic layer and an aqueous layer,
- wherein, in the formulae (I) and (II), R1, R2, and R3 each independently represent a hydrogen atom, an optionally hydroxyl group-substituted alkyl group having 1 to 10 carbon atoms, an optionally hydroxyl group-substituted alkenyl group having 2 to 10 carbon atoms, or an optionally hydroxyl group-substituted aryl group having 6 to 12 carbon atoms, provided that R1 and R3 are optionally bonded to each other to form a ring.
3 more elements
Dependencies are inferred from the claim text.