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US 8,299,288 B2Granted
Method for producing α-hydroxyester compound
AssigneeSumitomo Chemical Company, Limited
InventorsHajime Ishida, Masaji Hirota
Life of this patent
Estimating the term…
Abstract
Disclosed is a method for producing a compound represented by Formula (4), the method including Step I of adding a solution in which hydrogen chloride is dissolved in an alcohol, to a mixture containing an organic solvent and a compound represented by Formula (1), and Step II of mixing a compound obtained in Step I, represented by Formula (3), with water.
Claims8
A method for producing a compound represented by Formula (4):
- wherein R1 , R2 and m each represent the same meanings as defined below, which comprises
- Step I of adding a solution in which hydrogen chloride is dissolved in an alcohol represented by Formula (2):
- R2OH (2)
- wherein R2 represents an alkyl group having 1 to 4 carbon atoms, to a mixture containing an organic solvent and a compound represented by Formula (1):
- wherein R1 is represented by Formula (5) as follows:
- —CH2OR3 (5)
- wherein R3 represents an optionally-substituted phenyl group, and m represents an integer of 0 to 5;
- and
- Step II of mixing a compound obtained in Step I, represented by Formula (3):
- wherein R1 , R2 and m each represent the same meanings as defined above, with water.
7 more elements
A method for producing a compound represented by Formula (3):
- wherein R1 , R2 and m each represent the same meanings as defined below, which comprises a step of adding a solution in which hydrogen chloride is dissolved in an alcohol represented by Formula (2) as follows:
- R2OH (2)
- wherein R2 represents an alkyl group having 1 to 4 carbon atoms, to a mixture containing an organic solvent and a compound represented by Formula (1) as follows:
- wherein R1 is represented by Formula (5) as follows:
- —CH2OR3 (5)
- wherein R3 represents an optionally-substituted phenyl group, and m represents an integer of 1 to 5.
3 more elements
An intermediate which is represented by Formula (3):
- wherein R1 is represented by Formula (5) as follows:
- —CH2OR3 (5)
- wherein R3 represents an optionally-substituted phenyl group, m represents an integer of 1 to 5, and R2 represents an alkyl group having 1 to 4 carbon atoms for the production of a compound represented by Formula (4):
- wherein R1 , R2 and m each represent the same meanings as defined above.
1 more element
A compound represented by Formula (3-1):
- wherein R1a independently represents —CH2—R3a, R3a represents an optionally-substituted alkoxy group or an optionally-substituted phenoxy group, m1 represents an integer of 1 to 5, and R2a represents an alkyl group having 1 to 4 carbon atoms.
Dependencies are inferred from the claim text.