发明名称 |
METHOD FOR PRODUCING 2,2'-DIHYDROXY-BIPHENYLS |
摘要 |
<p>The invention is a process for preparing tetraalkyl-substituted biphenol which comprises reacting a 2,4- or 2,6-dialkyl substituted phenol in which the alkyl groups contain 1 to 6 carbon atoms with a peroxidase enzyme in the presence of a peroxide in an aqueous medium to yield a tetraalkyl-substituted biphenol by oxidative coupling of the 2,4- or 2,6-dialkyl substituted phenol, or yielding a tetra-alkyl substituted quinone, and reducing the quinone to obtain a tetraalkyl-substituted biphenol. The invention further includes a process for preparing a tetraaryl-substituted biphenol in which the aryl groups contain 6 to 10 carbon atoms which comprises racting a 2,4 or 2,6 diarylphenol with a peroxidase enzyme to yield a tetraaryl-substituted biphenol. A process for reducing a tetraalkyl-substituted quinone to corresponding tetraalkyl-substituted biphenol which comprises reducing the quinone with a phenol in an aqueous medium at a temperature of about 60° to 120° C. is also included.</p> |
申请公布号 |
EP1633691(B1) |
申请公布日期 |
2007.04.11 |
申请号 |
EP20040739502 |
申请日期 |
2004.06.02 |
申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
FLORES, MIGUEL ANGEL;BARTSCH, MICHAEL;BAUMANN, ROBERT;HADERLEIN, GERD;JUNGKAMP, TIM;SCHEIDEL, JENS;LUYKEN, HERMANN;SIEGEL, WOLFGANG;MEYER, CHRISTA;WIDMAIER, RALF |
分类号 |
C07C37/60;C07C37/11;C07C39/15 |
主分类号 |
C07C37/60 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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