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US 12,735,394 B2Granted
Method for preparing cyclic sulfonic acid ester derivative compound
AssigneeLG Chem, Ltd.
InventorsSang Weon Roh, Byung Soo Kang, Min Su Hwang, Jeong Ae Yoon, Won Jae Lee, Su Jeong Kim
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Abstract
A manufacturing method capable of improving the yield and properties of a cyclic sulfonic acid ester derivative compound includes (A) reacting a compound represented by Formula 1 and thioacetic acid to prepare a compound represented by Formula 2, and (B) subjecting the compound represented by Formula 2 to an oxidative cyclization reaction to prepare a compound represented by Formula 3: wherein m and R1 to R8 are described herein.
Claims17
A method for preparing a cyclic sulfonic acid ester derivative compound, the method comprising:
- step (A) reacting a compound represented by Formula 1 with thioacetic acid to prepare a compound represented by Formula 2;
- and
- step (B) subjecting the compound represented by Formula 2 to an oxidative cyclization reaction to prepare a compound represented by Formula 3:
- wherein in Formula 1 to Formula 3,
- m is 0 or 1, and
- R1 to R8 are each independently hydrogen, or a substituted or unsubstituted C1-C10 alkyl group.
3 more elements
Dependencies are inferred from the claim text.