Process for production of dimers or aromatic monohydroxyl...

Details Process for production of dimers or aromatic monohydroxyl... Process for production of dimers or aromatic monohydroxyl...

2005-05-10

2005-05-10

Shippen, Michael L. (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

C552S291000, C552S292000, C552S304000, C560S045000, C560S056000, C564S153000, C568S730000

Reexamination Certificate

active

06891072

ABSTRACT:
The present invention provides a method for preparing dimer of a monohydroxy aromatic compound. In the method of the present invention, oxidative coupling reaction of a monohydroxy aromatic compound represented by formula [I]:in-line-formulae description="In-line Formulae" end="lead"?Ar—OH  [I]in-line-formulae description="In-line Formulae" end="tail"?wherein Ar represents an optionally substituted aromatic groupis carried out in a nitrogen containing polar solvent in the presence of a copper salt. By the method of the instant invention, dimer of the monohydroxy aromatic compound can be obtained in high yield.

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