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对位上带有二甲氨甲基、二乙氨甲基及β-乙氨乙巯基的硝基苯用盐酸与锡或铁屑还原成相应苯胺(IIa,b,e)。后者与按照已知方法制备的对β-二乙氨乙基及β-二乙氨乙氧基苯胺(IIc,d)都在18%盐酸溶液中用亚硝酸重氮化,并与三氯化锑生成复盐,再脱氮分解成为苯酰氯(Ⅰ)。除β-二乙氨乙氧基化合物(Id)以外,其余的产率均尚称满意。将粗制苯(月弟)酰氯溶于热水中,加入浓盐酸使其重行析出,反复处理,便足纯化。
Nitrobenzene with dimethylaminomethyl, diethylaminomethyl and β-ethylaminoethylmercapto on the para position is reduced to the corresponding aniline (IIa, b, e) with tin or iron filings with hydrochloric acid. The latter was diazotized with nitrous acid in a solution of 18% hydrochloric acid, prepared in accordance with known methods, and both β-diethylaminoethyl and β-diethylaminoethoxyaniline (IIc, d) Antimony generates double salt, and then denitrification into benzoyl chloride (Ⅰ). With the exception of the β-diethylaminoethoxy compound (Id), the remaining yields were all still satisfactory. The crude benzene (cousin) acid chloride dissolved in hot water, add concentrated hydrochloric acid to make it re-precipitation, repeated treatment, it will be sufficient purification.