Aryl Halides or Haloarenes
Direct chlorination or bromination of benzene or other aromatic hydrocarbon gives chloroarenes and bromoarenes. These reactions are carried out in the presence of Lewis acids such as ferric or aluminium halides (FeCl 3 , FeBr 3 , AlCl 3 ) in the dark, at ordinary tempera..
Aryl Halides or Haloarenes
Preparation of haloarenes - Preparative methods of haloarenes ar..
From Alkyl halides
. The above reactions involve nucleophilic substitution process. Hence this method is not suitable for preparing aryl cyanides because aryl halides are less reactive towards nucleophilic substitution reactions..
Reactions with active metals
Alkyl halides readily combine with active metals like sodium, magnesium, cadmium, lithium et..
Reaction of acyl halides
Acyl halides undergo nucleophilic acyl substitution with several nucleophiles. i) They react with water to give carboxylic acids. This is called hydrolysis. ..
Acyl halides undergo nucleophilic acyl substitution with several nucleophiles. i) They react with water to give carboxylic acids. This is called hydrolysis. ..Ammonolysis is Alkyl halides
. The reaction is a typical example of nucleophilic substitution reaction. Here the ammonia molecules in the first step and the amine molecules in the subsequent steps act as nucleophile..
. The reaction is a typical example of nucleophilic substitution reaction. Here the ammonia molecules in the first step and the amine molecules in the subsequent steps act as nucleophile..Reaction with metals
All metals form oxides with oxygen. The reaction conditions and the type of oxide formed are determined by type of metal..
Reaction with metals
As hydrogen behaves like a metal, it usually does not combine with metals. However, highly electro-positive metals like potassium, sodium and calcium combine with hydrogen, to form their respective hydrides. In these hydrides, hydrogen has a negative valency (H - 1 )..
As hydrogen behaves like a metal, it usually does not combine with metals. However, highly electro-positive metals like potassium, sodium and calcium combine with hydrogen, to form their respective hydrides. In these hydrides, hydrogen has a negative valency (H - 1 )..
..Formation of halides
Alkaline Earth metals combine with halogens at higher temperatures to form halides. ..
Alkaline Earth metals combine with halogens at higher temperatures to form halides. ..See what our Users say :
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