28092-52-6Relevant articles and documents
METHOD FOR PRODUCING THIOLACTONE COMPOUND
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Paragraph 0086-0091; 0096-0102, (2021/10/02)
PROBLEM TO BE SOLVED: To provide a method for producing a thiolactone compound at high yield. SOLUTION: A method for producing a thiolactone compound includes bringing a lactone compound, in which S in a compound of the formula (II) is replaced with O, into contact with acetic acid alkali metal salt in a first organic solvent to make a first mixture; and bringing the first mixture into contact with a thiocarboxylic acid to make a second mixture including the thiolactone compound of the formula (II) [R1 and R2 each denote H, a benzyl group, or a substituted benzyl group]. SELECTED DRAWING: None COPYRIGHT: (C)2021,JPOandINPIT
METHOD FOR PRODUCING THIOLACTONE COMPOUND
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Paragraph 0101-0103, (2021/02/26)
To provide a production method for obtaining a high-purity thiolactone compound at good yields.SOLUTION: A method for producing a thiolactone compound includes crystallizing and extracting a thiolactone compound of the following formula in an alcohol solvent with a boiling point of 85°C or higher, where R1 and R2 each denote H or a ureine protection group such as a benzyl group.SELECTED DRAWING: None
ESTER DERIVATIVE, AND METHOD FOR PRODUCING THIOLACTONE DERIVATIVE
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Paragraph 0080-0083, (2020/10/03)
PROBLEM TO BE SOLVED: To provide an ester derivative, that is a novel intermediate for producing thiolactone derivative from a lactone derivative, and a method for producing thiolactone derivative. SOLUTION: The ester derivative (2) is obtained via halogenation and esterification of a lactone derivative (1). (In the formula, R1 and R2 represent benzyl. R3 is alkyl and X is halogen.). SELECTED DRAWING: None COPYRIGHT: (C)2020,JPOandINPIT