摘要:
A method for producing an arene with an aromatic C—N bond ortho to an aromatic C—O bond from a hydroxy arene comprising said aromatic C—O bond is provided. This method comprising the steps a) ortho-oxygenating the hydroxy arene to produce an ortho-quinone, b) condensating the ortho-quinone with a nitrogen nucleophile to generate a compound of Formula (IVa) or (IVb), and c) allowing 1,5-hydrogen atom shift of the compound of Formula (IVa) or (IVb), thereby producing arenes with a C—N bond ortho to a C—O bond of Formula (Va) and (Vb), respectively:
摘要:
Carbon-carbon coupled self-condensation products obtained by the oxidative coupling of alkylphenols, alkoxyphenols or 1-naphthols are prepared by contacting an aqueous mixture of the phenol or naphthol with oxygen in the presence of sufficient alkaline material to sustain a pH in the range of 5-10 during the oxidative coupling reaction and a catalyst system comprising a cupric, cobaltous, manganous or ferric complex ofAn aliphatic hydroxy amine,A heterocyclic hydroxy amine,A heterocyclic polyamine or,An aliphatic diamineThe mixture may optionally contain a surfactant.
摘要:
WHEREIN N IS 1,2, OR 3 AND R IS AN ALKYL GROUP CONTAINING FROM 1 TO 4 CARBON ATOMS.
R-O-(CH2-CH2-O)N-CO-CH3
AN IMPROVED PROCESS FOR THE OXIDATION OF MONO AND DIALKYL PHENOLS WHICH COMPRISES THE COUPLING OF THE PHENOL IN THE PRESENCE OF AN OXYGEN CONTAINING GAS AND A CATALYST SELECTED FROM THE GROUP CONSISTING OF MANGANOUS ACETYLACETONATE, MANGANOUS SILICYCLIDENEIMINE, CERIUM ACETYLACETONATE AND OTHER CHELATES OF MANGANOUS AND CEROUS IONS. THE PROCESS IS SOLVENT SPECIFIC AND HAS BEEN FOUND TO YEILD THE BEST RESULTS IN A SOLVENT WHICH IS A SATURATER ALIPHATIC MONOHYDRIC ALCOHOL CONTAINING FROM 2 TO 10 CARBON ATOMS, AN ESTER OF A SATURATED ALIFROM 4 TO 12 CARBON ATOMS, AN ESTER OF A SATURATED ALIPHATIC MONOHYDRIC ALCOHOL CONTAINING FROM 4 TO 10 CARBON ATOMS AND ACETIC, PROPIONIC, OR BUTYRIC ACID, ETHYLENE GLYCOL DIACETATE, DIETHYLENE GLYCOL DIACETATE, TRIETHYLENE GLYCOL DIACETATE, AND ETHER-ESTERS CHARACTERIZED BY THE FORMULA
摘要:
Ortho-quinones with alkyl, olefin polymer, or halogen substituents and a process for the preparation of these compounds comprising a base catalyzed halogen oxidation of alkylated phenol.