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US 10,717,693 B2Granted
Method for producing diol
AssigneeDaikin Industries, Ltd.
InventorsTomohito Hamada, Michiaki Okada, Akinori Yamamoto, Yosuke Kishikawa
Life of this patent
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Abstract
The present invention provides a method for producing a diol having a specific structure in high yields while keeping high selectivity. Provided is a method for producing a diol having a specific structure by oxidizing an olefin having a specific structure in the presence of a ruthenium compound.
Claims11
A method for producing a diol in high yields, comprising
- oxidizing an olefin represented by Formula (1):
- wherein R1 is a group having an electronegativity of 3.3 to 5.0;
- and R2 to R4 are each independently a hydrogen atom, a cyano group, or an optionally substituted alkyl group, in the presence of a ruthenium compound to produce a diol represented by Formula (2):
- wherein R1 to R4 are as defined above.
1 more element
A method for producing a diol in high yields, comprising
- oxidizing an olefin represented by Formula (3):
- wherein R5 is a cyano group or a fluorine-containing alkyl group;
- and R6 to R8 are each independently a hydrogen atom, a cyano group, or an optionally substituted alkyl group, in the presence of a ruthenium compound to produce a diol represented by Formula (4):
- wherein R5 to R8 are as defined above.
1 more element
A composition comprising:
- a diol represented by Formula (4):
- wherein R5 is a cyano group or a fluorine-containing alkyl group;
- and R6 to R8 are each independently a hydrogen atom, a cyano group, or an optionally substituted alkyl group, and
- an acid compound represented by Formula (5):
- R5—COOH
- wherein R5 is as defined above,
- the composition containing the acid compound in an amount of 1,000 to 10,000 ppm.
4 more elements
Dependencies are inferred from the claim text.