申请人:Cotte Alain
公开号:US20090143594A1
公开(公告)日:2009-06-04
Described is a process for preparing diaryl ethers of the formula (I)
Ar—O—Ar′ (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)
Ar—OH (II)
Ar—OR (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)
Ar′—Br (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.
描述了一种制备化学式为(I)Ar—O—Ar′的二芳基醚的过程 (I)其中Ar是芳基或取代芳基基团,Ar′是芳基、取代芳基、杂环芳基或取代杂环芳基基团,通过将化学式为(II)的芳基或化学式为(III)的芳氧盐 (II)Ar—OH (III)其中Ar的含义与化学式(I)中相同,R为碱金属,与化学式(IV)的芳基或杂环芳基溴 (IV)Ar′—Br进行反应,其中Ar′的含义与化学式(I)中相同,其特征在于在铜(I)盐和1-取代咪唑作为催化剂体系的存在下进行反应。