Method for producing phenol condensate

Details Method for producing phenol condensate Method for producing phenol condensate

2007-01-09

2007-01-09

Nazario-Gonzalez, Porfirio (Department: 1621)

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

Organic compounds

Unsubstituted hydrocarbyl chain between the ring and the -c-...

C540S450000, C540S470000, C540S484000, C540S541000, C568S717000

Reexamination Certificate

active

10854334

ABSTRACT:
Provided is a method for producing a phenol condensate by oxidative condensation of a phenol compound not having a substituted group on at least one ortho-position, in the presence of a specific complex (II) and oxygen, wherein a condensate coupled at para-position of the phenol can be produced in an excellent yield,in-line-formulae description="In-line Formulae" end="lead"?L-M (X)n  (II)in-line-formulae description="In-line Formulae" end="tail"?wherein L represents a ligand having 2 to 4 nitrogen atoms as donor atoms, M represents copper ion, nickel ion, cobalt ion, iron ion, manganese ion, chromium ion or vanadyl ion, X represents a counter ion, n is a number of Xs.

REFERENCES:
patent: 5247075 (1993-09-01), Parker et al.
patent: 5284944 (1994-02-01), Madison et al.
patent: 2002-35592 (2002-05-01), None
Hideyuki Higashimura et al.; “Radical-Controlled” Oxidative Polymerization of 4-Phenoxyphenol by a Tyrosinase Model Complex Catalyst to Poly(1,4-phenylene oxide) ; Macromolecules 2000, vol. 33, pp. 1986-1995.

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