METHOD FOR PREPARING 2-NAPHTHOL DERIVATIVE

Title:

METHOD FOR PREPARING 2-NAPHTHOL DERIVATIVE

Document Type and Number:

Japanese Patent JP2005097189

Kind Code:

A

Abstract:

To provide a simple and inexpensive method for preparing a 2-naphthol derivative without using a fluorination agent which previously required a long reaction step in its preparation and the use of the expensive fluorination agent multi-times.

The method for preparing a 2-naphthol derivative represented by formula (2) comprises reacting a phenylacetic acid halide derivative represented by formula (1) with acetylene in the present of a Lewis acid. Specifically, for example, the reaction of formula (3) can be illustrated. The 2-naphthol derivative is useful as a production intermediate of fluorine substituted naphthalene derivatives useful as liquid crystal materials.

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Inventors:

MATSUMOTO TAKASHI
KUSUMOTO TETSUO

Application Number:

JP2003333450A

Publication Date:

April 14, 2005

Filing Date:

September 25, 2003

Export Citation:

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Assignee:

DAINIPPON INK & CHEMICALS

International Classes:

C07C37/14; C07B61/00; C07C39/38; (IPC1-7): C07C37/14; C07C39/38

Domestic Patent References:

JP2001010995A	2001-01-16
JP2001010995A	2001-01-16

Other References:

JPN6009022515, Ｈａａｃｋ，Ｒ．Ａ．, "ＳＹＮＴＨＥＳＩＳ　ＯＦ　ＳＵＢＳＴＩＴＵＴＥＤ　ＳＰＩＲＯ［４．５］ＤＥＣＡ−３，６，９−ＴＲＩＥＮＥ−２，８−ＤＩＯＮＥＳ：　ＡＮ　ＥＸＰＥＤＩＴＩＯＵＳ　ＲＯＵＴＥ　ＴＯ　ＴＨＥ　ＳＰＩＲＯ［４", Ｔｅｔｒａｈｅｄｒｏｎ　Ｌｅｔｔｅｒｓ, 1989, Ｖｏｌ．３０，　Ｎｏ．１３, ｐ．１６０５−１６０８

Attorney, Agent or Firm:

Takahashi victory

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