| 发明名称 |
Improved process for the catalytic synthesis of diaryl ethers |
| 摘要 |
<p>Described is a process for preparing diaryl ethers of the formula (I)
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ Ar-O-Ar'€ƒ€ƒ€ƒ€ƒ€ƒ(I)
In which Ar is an aryl or substituted aryl group and Ar' is an aryl, substituted aryl, heteroaryl or substituted heteroaryl group,
by reacting an aryl of formula (II) or a aryloxy salt of formula (III)
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ Ar-OH€ƒ€ƒ€ƒ€ƒ€ƒ(II)
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ Ar-OR€ƒ€ƒ€ƒ€ƒ€ƒ(III)
In which Ar has the same meaning as in formula (I) and R is an alkali metal,
with an aryl or heteroaryl bromide of formula (IV)
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ Ar'-Br€ƒ€ƒ€ƒ€ƒ€ƒ(IV)
In which Ar' has the same meaning as in formula (I),
characterized in that the reaction is carried out in the presence of a copper(I)salt and a 1-substituted imidazole as catalyst system.</p> |
| 申请公布号 |
EP2065357(B1) |
申请公布日期 |
2014.04.23 |
| 申请号 |
EP20080169219 |
申请日期 |
2008.11.17 |
| 申请人 |
SALTIGO GMBH |
发明人 |
COTTE, ALAIN;MUELLER, NIKOLAUS;GOTTA, MATTHIAS;BELLER, MATTHIAS;SCHAREINA, THOMAS;ZAPF, ALEXANDER |
| 分类号 |
C07C201/12;C07C41/16;C07C213/00;C07C231/12;C07D213/643 |
主分类号 |
C07C201/12 |
| 代理机构 |
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