摘要:
Electrochemical process for coupling two phenols of different oxidation potential, and novel biphenols which can be prepared by this electrochemical coupling.
摘要:
The invention relates to an electrochemical method for coupling phenol and aniline, the difference of the oxidation potential of the substrates being in the region of 10 mV-450 mV and the substrate with the highest oxidation potential being added in excess. Said method enables biaryls, which have hydroxy- and amino functions, to be electrochemically produced and to dispense with multi-step syntheses using metallic reagents.
摘要:
Novel 2,2′-diamino biaryls of formula (I), (II) and (III), wherein R1-R10, R1′-R10′, X1-X3 and X1-X3′ are defined in claim 1. The invention also relates to an electrochemical method for the production thereof.
摘要:
The invention relates to an electrochemical method for the selective coupling of a phenol to a naphthol which differ in their oxidation potential. The invention also relates to compounds which can be produced by electrochemical coupling.
摘要:
The invention relates to an electrochemical method for coupling anilines. When coupling two different anilines, the difference of the oxidation potential of the substrates is in the region of between 10 mV bis 450 mV, and the aniline with the highest oxidation potential is added in excess. Said method enables biaryldiamines to be electrochemically produced and to dispense with multi-step syntheses using metallic reagents.
摘要:
The invention relates to: a) phosphoramidites of formula (I); b) transition-metal-containing compounds of the formula Me(acac)(CO)L, wherein L is selected from formula (I); c) catalytically active compositions in hydroformylation that have the compounds mentioned under a) and b); d) a method for the hydroformylation of unsaturated compounds by using the catalytically active composition mentioned under c); and e) a multi-phase reaction mixture, containing unsaturated compounds, a gas mixture, which comprises carbon monoxide and hydrogen, aldehydes, and the catalytically active composition described under c).