CAS: 2100-42-7; 2-Chloro-1,4-Dimethoxybenzene

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CAS号150-78-7 对苯二甲醚 | CAS号102-56-7 2,5-二甲氧基苯胺 | CAS号102102-20-5 N-chloro-N-meth... | CAS号15791-03-4 3,3,6,6-四甲氧基-1,... | CAS号77-78-1 硫酸二甲酯 | CAS号615-67-8 氯氢醌 | CAS号74-88-4 碘甲烷 | CAS号10026-13-8 五氯化磷 | CAS号7782-50-5 氯气 | CAS号10224-66-5 2,5-二甲氧基-N-甲基苯胺 | CAS号56309-62-7 2,5-二甲氧基苯异氰酸酯 | CAS号6358-64-1 4-氯-2,5-二甲氧基苯胺 | CAS号6940-53-0 4-氯-2,5-二甲氧基硝基苯 | CAS号135-77-3 1,2,4-三甲氧基苯 | CAS号135-45-5 N-(2,5-二甲氧基苯基)苯甲酰胺 | CAS号858218-84-5 4,4'-dichloro-2... | CAS号131590-30-2 1-chloro-4-(4-c... | CAS号90064-46-3 1-氯-4-碘-2,5-二甲氧基苯 | CAS号90064-48-5 4-氯-2,5-二甲氧基苯甲醛

对苯二甲醚置于三甲基氯硅烷,[双(三氟乙酰氧基)碘]苯体系中,用 二氯甲烷 用作溶剂,化学反应 18.0H,以85%的收率获得2-氯-1,4-二甲氧基苯
参考文献:原位生成超价碘试剂用于芳烃的亲电氯化反应
标题:原位生成超价碘试剂用于芳烃的亲电氯化反应
摘要:据报道,使用pifa和简单的氯源进行芳烃的亲电氯化的高效无金属方法.当分别使用pifa-kcl和pifa-tmscl的组合时,有人建议原位形成不同的基于i(III)的物质,例如phi(ococf 3)cl和phicl 2作为氯化剂.
Doi:10.1002/ejoc.201900237

专利信息

专利号:US-4074053-A
优先权日:1973-07-20
标题 :Aldehydes of 2-hydroxy-naphthalene-3-carboxylic acid arylides
发明人：HUNGER KLAUS; PAPENFUHS THEODOR
权利人:HOECHST AG
摘要:Aldehydes of a 2-hydroxy-naphthalene-3-carboxylic acid arylide of the general formula ##STR1## IN WHICH X represents a hydrogen, chlorine or bromine atom, and Ar represents a naphthyl group, a benzimidazolone, chlorobenzimidazolone, quinazolone, quinoxaline, phthalimide, phthalazine group or a phenyl group which may carry 1 to 3 lower alkyl, lower alkoxy, lower alkylsulfonyl, lower carboalkoxy, halogen, trifluoromethyl, nitro, cyano, lower alkanoylamino, benzoylamino, carboxamido or sulfoamido groups, and a process for their preparation wherein the corresponding 2-hydroxy-naphthalene-3-carboxylic acid arylide is reacted in a lower aliphatic carboxylic acid with hexamethylene tetramine and a mineral acid. n These aldehydes are valuable intermediate products for the synthesis of optical brighteners, pharmaceuticals and, in particular, of azamethine pigments which are obtained by condensation of these aldehydes with suitable amines. The pigments thus obtained are distinguished by good fastness properties and are especially suitable for the printing of paper and the coloring of lacquers, varnishes and plastics.

专利号:US-3947516-A
优先权日:1973-07-20
标 题:Novel aromatic aldehydes and process for preparing them
发明人：HUNGER KLAUS; PAPENFUHS THEODOR
权利人:HOECHST AG
摘要:Aldehydes of a 2-hydroxy-naphthalene-3-carboxylic acid arylide of the general formula ##SPC1## n In which X represents a hydrogen, chlorine or bromine atom, and Ar represents a naphthyl group, a benzimidazolone, chlorobenzimidazoline, quinazolone, quinoxaline, phthalimide, phthalazine group or a phenyl group which may carry 1 to 3 lower alkyl, lower alkoxy, lower alkylsulfonyl, lower carboalkoxy, halogen, trifluoromethyl, nitro, cyano, lower alkanoylamino, benzoylamino, carboxamido or sulfonamido groups and a process for their preparation wherein the corresponding 2-hydroxynaphthalene-3-carboxylic acid arylide is reacted in a lower aliphatic carboxylic acid with hexamethylene tetramine and a mineral acid. n These aldehydes are valuable intermediate products for the synthesis of optical brighteners, pharmaceuticals and, in particular, of azamethine pigments which are obtained by condensation of these aldehydes with suitable amines. The pigments thus obtained are distinguished by good fastness properties and are especially suitable for the printing of paper and the coloring of lacquers, varnishes and plastics.

专利号:CN-112573978-A
优先权日:2019-09-30
标题 :A kind of efficient halogenation synthesis method of aryl halide

专利号:CN-112573978-B
优先权日:2019-09-30
标题 :A kind of efficient halogenation synthesis method of aryl halide