Invention Application
- Patent Title: IMPROVED METHOD FOR PRODUCING BIPHENOLS FROM MONOPHENOLS
- Patent Title (中): 改进工艺用于生产双酚关单酚
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Application No.: PCT/EP2006061352Application Date: 2006-04-05
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Publication No.: WO2006106123A3Publication Date: 2007-01-18
- Inventor: BARTSCH MICHAEL , HADERLEIN GERD , AECHTNER TOBIAS , SCHEIDEL JENS , DIENES CHRISTIAN , TEMPEL ALEXANDER , HOFRICHTER THORSTEN , WEINLE WERNER
- Applicant: BASF AG , BARTSCH MICHAEL , HADERLEIN GERD , AECHTNER TOBIAS , SCHEIDEL JENS , DIENES CHRISTIAN , TEMPEL ALEXANDER , HOFRICHTER THORSTEN , WEINLE WERNER
- Assignee: BASF AG,BARTSCH MICHAEL,HADERLEIN GERD,AECHTNER TOBIAS,SCHEIDEL JENS,DIENES CHRISTIAN,TEMPEL ALEXANDER,HOFRICHTER THORSTEN,WEINLE WERNER
- Current Assignee: BASF AG,BARTSCH MICHAEL,HADERLEIN GERD,AECHTNER TOBIAS,SCHEIDEL JENS,DIENES CHRISTIAN,TEMPEL ALEXANDER,HOFRICHTER THORSTEN,WEINLE WERNER
- Priority: DE102005015893 2005-04-06
- Main IPC: C07C37/11
- IPC: C07C37/11 ; C07C39/15 ; C07F9/02
Abstract:
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.
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