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geniuslijian

金虫 (小有名气)

[求助] 重氮化问题

我想做重氮化氟化,可是我的氨基化合物无法溶于浓酸和水的混合液中,无法形成溶液,后面的重氮化没法做,请问是不是需要调节酸和水的比例让我的原料溶于酸溶液才能加入重氮盐做重氮化
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yanjianfeng

至尊木虫 (职业作家)

【答案】应助回帖

06233053(金币+1): 版主代发,谢谢参与 2012-02-28 14:17:18
过段时间也要做,最近看到一篇,楼主换成醋酸和硫酸的混合液看看
Because of 4-aminoazobenzene’s low solubility in the water/
hydrochloric acid mixture, 4.20 g of 4-aminoazobenzene was
dissolved in a mixture of 10 mL of acetic acid and 10 mL of sulfuric
acid, whereupon it was diazotized
3楼2011-09-19 19:22:07
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liwhite

铁杆木虫 (著名写手)

【答案】应助回帖

06233053(金币+1): 版主代发,谢谢参与 2012-02-28 14:17:12
试试换换酸的种类。盐酸硫酸都行
2楼2011-09-19 07:48:23
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玉蟾蝶衣

银虫 (正式写手)

引用回帖:
3楼: Originally posted by yanjianfeng at 2011-09-19 19:22:07:
过段时间也要做,最近看到一篇,楼主换成醋酸和硫酸的混合液看看
Because of 4-aminoazobenzene’s low solubility in the water/
hydrochloric acid mixture, 4.20 g of 4-aminoazobenzene was
dissolved in  ...

能发给我这篇文献吗?我也在用浓硫酸、冰醋酸重氮化,想学习一下。先谢谢啦
4楼2011-10-04 22:51:45
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