| 摘要 |
1502767 Production of phenols BURMAH OIL TRADING Ltd 30 April 1975 [6 May 1974] 19806/74 Heading C2C A process for producing a phenol or a substituted phenol by decomposing a secondary aromatic hydroperoxide comprises effecting the de-composition in the presence of a catalyst comprising a compound comprising at least one metal atom or cation or at least one non-metallic cation and at least one moiety derivable from an anion of the formula wherein S is a sulphur atom; Y represents an atom of sulphur or oxygen, or a group of the formula = V-R<SP>1</SP> wherein V represents an atom of nitrogen or phosphorus and R<SP>1</SP> is a hydrogen atom or a substituted or unsubstituted hydrocarbyl group; and X is a group of the formula wherein each R represents a substituted or unsubstituted hydrocarbyl group and recovering the required phenol or substituted phenol from the decomposition product. The preferred catalysts are transition metal N-substituted mono- or dithiocarbamates and transition metal di-substituted di- or monothiophosphates. |
