NOVEL METHOD FOR PREPARING 3-ALKOXY THIOPHENE DERIVATIVE

Title:

NOVEL METHOD FOR PREPARING 3-ALKOXY THIOPHENE DERIVATIVE

Document Type and Number:

WIPO Patent Application WO/2016/153094

Kind Code:

A1

Abstract:

The present invention provides a novel method for preparing a 3-alkoxy thiophene derivative. The present invention has an advantage in that the 3-alkoxy thiophene derivative can be mass-produced at high efficiency.

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Inventors:

SHEN LIU-LAN (KR)
ZHOU JIAN-JUN (KR)
NA HA-NA (KR)
HWANG SUNG KWAN (KR)
PARK CHANG HA (KR)

Application Number:

PCT/KR2015/002962

Publication Date:

September 29, 2016

Filing Date:

March 26, 2015

Export Citation:

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Assignee:

VISMER CO LTD (KR)
MIRAE FINE CHEMICAL CO LTD (KR)

International Classes:

C07D333/32; C07D333/10

Foreign References:

US4258053A	1981-03-24
US4352819A	1982-10-05
US4033992A	1977-07-05

Other References:

CORRAL, C. ET AL.: "Reactions with 3-Hydroxy-2-methoxycarbonylthiophene; I. Synthesis of 3-Thienyloxyacetic Acid and its (Nuclear) Chloro and Bromo Derivatives", SYNTHESIS, 1984, pages 847 - 850, XP055318201
HUDDLESTON, P. R. ET AL.: "A Convenient Synthesis of 2-Substituted 3-Hydroxy- and 3-Amino-Thiophens from Derivatives of 2-Chloroacrylic Acid", SYNTHETIC COMMUNICATIONS, vol. 9, no. 8, 1979, pages 731 - 734, ISSN: 0039-7911

Attorney, Agent or Firm:

YOU, Chi Youl et al. (KR)
유지열 (KR)

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