叙述了3,4-二甲基苯甲醛国内外合成技术状况及各合成路线的对比,介绍了以邻二甲苯、CO、HCl为原料,以1,2-二氯乙烷为溶剂,Lewis酸为催化剂进行甲酰化反应的比较理想的合成方法和工艺流程,取物料配比为m(邻二甲苯)∶m(AlCl3)∶m(Cu2Cl2)∶m(二氯乙烷)=1∶1。 3. 5 MPa,the formylation reaction for 6 h...
HCl as a byproduct (Hagedorn, F. H. Gelbke, and Federal Republic of Germany. 2002. Nitriles. In Ullman Encyclopedia of Industrial Chemistry. Wiley-VCH Verlag GmbH & Co. KGaA.). The reaction of Benzene and trichloroacetonitrile evolves toxic chloroform and HCl gasses. (Hagedorn, F., H.-...
Alkylation mechanism of benzene with 1-dodecene catalyzed by Et3NHCl-AlCl3[J]. QI GuoPeng 1,JIANG Feng 1,SUN XueWen 2 & ZHAO SuoQi 2 1School of Chemical Engineering,Tianjin University,Tianjin 300072,China 2State key Laboratory of Heavy Oil Processing,Petroleum University of China,Beijing 102249...
What product is formed when benzene is treated with the given organic halide in the presence of AlCl3? What carbonyl compounds might you start with in a Grignard synthesis of the following compound? 3-phenyl-3-pentanol You do not have to consider stereoc...
1: 43 percent / AlCl3 / 1,2-dichloro-ethane / 3 h / 20 °C2: triethylsilane; TFA / 1,2-dichloro-ethane / 3 h / 20 °C3: 3.40 g / NaOMe; MeOH / 2 h / Heating4: Et3N / CH2Cl2 / 1 h / 20 °C5: 16.0 g / NaI / butan-2-one / 2 h / HeatingView Scheme Multi-...
Some examples of Friedel-Crafts types of catalysts include mixtures of AlCl3 and HCl (for which the alkylation process is generally practiced below 135° C. and at sufficient pressure to keep the reactants in the liquid phase), a composite of phosphoric acid and a solid binder material, such...
HCl as a byproduct (Hagedorn, F. H. Gelbke, and Federal Republic of Germany. 2002. Nitriles. In Ullman Encyclopedia of Industrial Chemistry. Wiley-VCH Verlag GmbH & Co. KGaA.). The reaction of Benzene and trichloroacetonitrile evolves toxic chloroform and HCl gasses. (Hagedorn, F., H.-...
叙述了3,4-二甲基苯甲醛国内外合成技术状况及各合成路线的对比,介绍了以邻二甲苯、CO、HCl为原料,以1,2-二氯乙烷为溶剂,Lewis酸为催化剂进行甲酰化反应的比较理想的合成方法和工艺流程,取物料配比为m(邻二甲苯)∶m(AlCl3)∶m(Cu2Cl2)∶m(二氯乙烷)=1∶1。 3. 5 MPa,the formylation reaction for 6 h...
Reagents and conditions: (a) AlCl3, CH2Cl2; (b) Br2, CH2Cl2; (c) HCl; and (d) CH2Cl2. In the first step, the corresponding aromatic ketone was obtained in the Friedel–Crafts reaction. NextI,nththeebfrirosmt sinteapti,otnheocfotrhreesopbotnadininedg aarroommaattiicckkeettoonneewwaist...
Earlier it has been reported that phenols do not react satisfactorily with Friedel-Crafts reagent in solvents because of their reaction with Lewis acids (Ar-OH + AlCl3 Æ Ar-O-AlCl2 + HCl) resulting in compounds which are usually only sparingly soluble in the reaction medium and hence slow...