摘要 |
The invention relates to a method for producing biphenols of general formula (I) by reacting monophenols of general formula (II), wherein the radicals R1, R2 and R3 independently represent hydrogen, alkyl, aryl or arylalkyl, with 1 - 10 C-atoms, in the presence of an oxidation agent in a reactor. Said method is characterised in that a) the reactor does not contain any stationary integrated components which act as a current agitator, b) a maximum of 0,6 mol of oxidation agents are used per mol of monophenol, and c) the oxidation agent is added in a continuous or discontinuous manner in a plurality of portions within a time span of between 10 min - 24 hours, whereby the amount of oxidation agent which is added per time unit is not constant over the entire tine span, but is varied. |
申请人 |
BASF AKTIENGESELLSCHAFT;BARTSCH, MICHAEL;HADERLEIN, GERD;AECHTNER, TOBIAS;SCHEIDEL, JENS;DIENES, CHRISTIAN;TEMPEL, ALEXANDER;HOFRICHTER, THORSTEN;WEINLE, WERNER |
发明人 |
BARTSCH, MICHAEL;HADERLEIN, GERD;AECHTNER, TOBIAS;SCHEIDEL, JENS;DIENES, CHRISTIAN;TEMPEL, ALEXANDER;HOFRICHTER, THORSTEN;WEINLE, WERNER |