Method for producing phenol condensate
US7161000B2 · kind B2 · utility
3Cited by
2References
5Claims
0Family size
Assignee
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Key dates
| Filing date | May 27, 2004 |
| Grant date | Jan 9, 2007 |
| Priority date | — |
| Expiry date | Jun 23, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C45/39
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
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,L-M (X)n (II)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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.