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那老师,不知道你做过2,6-Di(p-aminophenyl)benzo[1,2-d:5,4-d,]dioxazole没得,我现在做到粗产品是有了,可是看了文献,纯化不出来,我只有3.1g粗产品,文献是这样的:The yield of Iwas 7.8 g (92%). For purification,
the I was dissolved in 160 ml of dimethyl sulfoxide heated to 80~ and then 560 1Ill of cold toluene was
added, the mixture was cooled to 0~ and the brown precipitate that deposited was filtered off with suction.
The filtrate was treated in the cold with another 900 ml of toluene, and the mixture was left at 0-5~
for a day, and was then filtered and the residue of diamine was washed with methanol. This gave 4 g of
yellow crystalline》我该怎么使用DMSO和甲苯呢???我看不出来文献的比例! 请马老师给点建议,谢谢