Patent Number: 6,166,246

Title: 4-fluorosalicyclic acid derivative and process for production thereof

Abstract: The present invention provides a 4-fluorosalicylic acid derivative represented by the following general formula (1): ##STR1## (wherein X.sup.1, X.sup.2 and X.sup.3 are each independently a hydrogen atom or a halogen atom with a proviso that there is no case in which all of X.sup.1, X.sup.2 and X.sup.3 are hydrogen atoms or fluorine atoms simultaneously); and a process for producing the above 4-fluoro-salicylic acid derivative. The 4-fluorosalicylic acid derivative of the present invention is a novel compound not described in any literature and is very suitable as a raw material for production of a 3-fluorophenol derivative (the 3-fluorophenol derivative is very useful as an intermediate for liquid crystal, recording material, medicine and agricultural chemical) because the 4-fluorosalicylic acid derivative can be easily converted to the 3-fluorophenol derivative.

Inventors: Umezu; Kazuto (Shizuoka-ken, JP)

Assignee: Ihara Chemical Industry Co., Ltd.

International Classification: C07C 51/347 (20060101); C07C 51/367 (20060101); C07C 65/05 (20060101); C07C 65/00 (20060101); C07C 065/10 ()

Expiration Date: 12/26/2017