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Title:
METHOD FOR PRODUCING PORPHYRIN COMPOUND
Document Type and Number:
Japanese Patent JP2006151827
Kind Code:
A
Abstract:

To produce a high-purity porphyrin compound in high yield.

The method for producing porthyrin compound comprises reducing a pyrrole-2-carboxylic acid ester derivative, refining a 2-hydroxymethylpyrrole derivative from a reaction product containing the 2-hydroxymethylpyrrole derivative and carrying out cyclodehydration and oxidation of the 2-hydroxymethylpyrrole derivative. In the production method, a 2-methylpyrrole derivative of by-product contained in the 2-hydroxymethylpyrrole derivative produced in a reduction process of a pyrrole-2-carboxylic acid ester derivative is removed. As a result, selectivity obtained when selecting a polyphyrinogen derivative by cyclodehydration of the 2-hydroxymethylpyrrole derivative is increased and yield of the porphyrin compound of the final product can be increased thereby.


Inventors:
OHASHI MISAKO
SAKAI YOSHIMASA
KIYOKU KEIHEI
ARAMAKI SHINJI
URATA HISAO
Application Number:
JP2004340675A
Publication Date:
June 15, 2006
Filing Date:
November 25, 2004
Export Citation:
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Assignee:
MITSUBISHI CHEM CORP
International Classes:
C07D487/22
Domestic Patent References:
JPS63238078A1988-10-04
JP2004323376A2004-11-18
JP2004006750A2004-01-08
Attorney, Agent or Firm:
Tsuyoshi Shigeno



 
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