A composition having a mixture of the below compounds having a mole ratio of at least 1:20. Ar
1
and Ar
2
are independently selected aromatic groups. A composition comprising phthalonitrile compounds that comprise at least 5 mol % of the first compound below.
A method of: providing a solution of a dichloroaromatic compound having an electron-withdrawing group bound to each aromatic ring containing one of the chloride groups; a dihydroxyaromatic compound or anion thereof; an organic transition metal complex or a transition metal salt; an alkaline hydroxide base; and a solvent; and heating the solution to a temperature at which the dichloroaromatic compound and the dihydroxyaromatic compound react to form a dimetallic salt of an aromatic ether oligomer. The molar ratio of the dihydroxyaromatic compound to the dichloroaromatic compound is greater than 2:1. Water formed during the heating is concurrently distilled from the solution.
以下化合物混合物的摩尔比至少为1:20。其中Ar1和Ar2是独立选择的芳香族基团。一种组成物包括至少含有下列第一化合物的苯二腈化合物的5摩尔%。一种方法包括:提供一种溶解有含有每个
氯化物基团的芳香环上结合有电子吸引基团的二
氯芳香族化合物;一种二羟基芳香族化合物或其阴离子;一种有机过渡
金属配合物或一种过渡
金属盐;一种碱性氢氧化物碱;和一种溶剂的溶液;并将该溶液加热至二
氯芳香族化合物和二羟基芳香族化合物反应形成芳香醚寡聚体的二
金属盐的温度。二羟基芳香族化合物对二
氯芳香族化合物的摩尔比大于2:1。在加热过程中产生的
水与溶液同时蒸馏。