aluminium chloride वाक्य
उदाहरण वाक्य
मोबाइल
- Alternatively, benzene may react with carbon tetrachloride using the same catalyst to obtain the trityl chloride-aluminium chloride adduct, which is hydrolyzed with dilute acid:
- For a time it was used as a promoter chemical in the aluminium chloride catalyzed process to produce ethylbenzene, the precursor for styrene monomer.
- In one named reaction called the "'Ferrario reaction "'phenyl ether is converted to " phenoxathiin " by action of elemental sulfur and aluminium chloride.
- Chlorination at with aluminium chloride and acetyl chloride yields equal amounts of 1-and 4-chlorodiamantane, whereas use of chlorosulfonic acid yields mainly the 1-chloro isomer.
- A general problem with the Friedel Crafts reaction is that the aluminium chloride catalyst sometimes is required in full environmentally benign catalysts have been sought.
- Ammonium tetraperchloratoaluminate can be formed by three moles of nitronium perchlorate, one mole of anhydrous aluminium chloride, and one mole of ammonium perchlorate combined in liquid sulfur dioxide.
- For both reactions, the aluminium chloride, as well as other materials and the equipment, should be dry, although a trace of moisture is necessary for the reaction to proceed.
- It can also be prepared by Friedel-Crafts acylation of benzene with benzoyl chloride in the presence of a Lewis acid ( e . g . aluminium chloride ) catalyst.
- This is accomplished via the Gattermann-Koch reaction, accomplished by treating benzene with carbon monoxide and hydrogen chloride under high pressure, catalyzed by a mixture of aluminium chloride and cuprous chloride.
- The classic example of this reaction is the conversion of p-cresol to a cyclohexadienone ( with the aid of aluminium chloride as a catalyst and tetrachloromethane as a solvent ).
- A way to make a tetranitratoaluminate salt of a cation is to treat the chloride of the cation and aluminium chloride with liquid dinitrogen tetroxide pure or dissolved in nitromethane.
- Subsequent hydrogenation of "'13 "'followed by intramolecular cyclization with aluminium chloride forms the B ring and ( + )-totarylmethyl ether which is demethylated by boron tribromide to yield ( + )-totarol.
- He researched the chemistry of hydrocarbons and polymers, and developed the proton theory of aluminium chloride, which helped explain a variety of chemical reactions, publishing a book on the subject in 1941.
- The aluminium chloride adduct ( POCl 3 �AlCl 3 ) is quite stable, and so POCl 3 can be used to remove AlCl 3 completely from reaction mixtures at the end of a Friedel-Crafts reaction.
- Other methods to form methyldiboranes include reacting hydrogen with trimethylborane between 80 and 200 �C under pressure, or reacting a metal borohydride with trimethylborane in the presence of hydrogen chloride, aluminium chloride or boron trichloride.
- The major other uses of aluminium hydroxide is as a feedstock for the manufacture of other aluminium compounds : specialty calcined aluminas, aluminium sulfate, polyaluminium chloride, aluminium chloride, zeolites, sodium aluminate, activated alumina, aluminium nitrate.
- In studying the chemical reactions between alkenes and dienes, particularly in the presence of an aluminium chloride catalyst, he developed the proton theory of aluminium chloride, which helped explain a variety of chemical reactions, including cracking, polymerization and dehydrogenation.
- In studying the chemical reactions between alkenes and dienes, particularly in the presence of an aluminium chloride catalyst, he developed the proton theory of aluminium chloride, which helped explain a variety of chemical reactions, including cracking, polymerization and dehydrogenation.
- Aluminium chloride combined with aluminium in the presence of an arene can be used to synthesize bis ( arene ) metal complexes, e . g . bis ( benzene ) chromium, from certain metal halides via the so-called Fischer-Hafner synthesis.
- The yield is lower for 3-chloropyridine upon chlorination with molecular chlorine in the presence of aluminium chloride at 100 �C . Both 2-bromopyridine and 2-chloropyridine can be produced by direct reaction with halogen with a palladium ( II ) chloride catalyst.
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