Organic Chemistey for JEE|NEET|GATE|NET
The Henry reaction was first reported by Belgian chemist Louis Henry in 1895. The Henry reaction involves the addition of a nitronate salt to a carbonyl compound, usually an aldehyde. The reaction is also referred to as a Nitroaldol reaction. It is C-C bond-forming reaction used in organic synthesis. Mechanism: The Henry Reaction Mechanism can present in two steps … Read more
The rearrangements reactions are important Name reaction in organic chemistry. Wittig rearrangement, first reported by G. Wittig and L. Löhmann in 1942, The Wittig rearrangement converts α-metalated ethers to metal alkoxides, yielding secondary or tertiary alcohols. Its nitrogen analog, the aza-Wittig rearrangement, transforms α-metalated tertiary amines into rearranged metal amides, producing homoallylic secondary amines. This … Read more
Sommelet-Hauser rearrangement is one of the thermal [2,3]-sigmatropic rearrangements, in which the benzylic quaternary ammonium salts are treated within the presence of a strong base like NaNH2, KNH2, as well as alkyl lithium to prepare the Substituted 3° benzylic amine.
The Carroll Rearrangement is a named reaction in organic chemistry, where the [3,3]-sigmatropic rearrangement of allylic β-keto esters to form γ,δ-unsaturated ketones is called the Carroll rearrangement. It is also known as the Kimel–Cope or decarboxylative Claisen rearrangement. Here, we will explore the Carroll rearrangement and its mechanism, accompanied by some interesting examples. Carroll Rearrangement … Read more
Cannizzaro Reaction is a base-catalyzed redox reaction in which aromatic aldehydes, formaldehyde, or other aliphatic aldehydes lacking α-hydrogen are converted into the corresponding alcohols and carboxylic acids. Cannizzaro reaction is a named reaction in organic chemistry. Here, we will explore the Cannizzaro Reaction and its mechanism, accompanied by some interesting examples. Cannizzaro Reaction Mechanism: Several … Read more
The addition of aliphatic or aromatic aldehydes across activated double bonds in the presence of a nucleophilic catalyst for the synthesis of 1,4-diketones and γ-oxo nitriles is known as the Stetter reaction.