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Cannizzaro Reaction
Those carbonyl compound which donot contain α-H react in the presence of conc. base gives alcohol ( reduced product) and acidic salt (oxidized Product). Reaction of cannizzaro: Cannizzaro Reaction Mechanism: Step(01) formation of dianion: In this reaction , we use typical base OH which react on less hindered product because our preference is to make…
Industrial Biochemistry and Microbes
Industrial Biochemistry The process of applying techniques and biochemical principles to develop innovative products that benefit humankind is called industrial biochemistry. It deals in biology, technology, engineering, and chemistry fields. Keys & Areas in Industrial Biochemistry: Biocatalyst: Enzymes or microorganisms are used to catalyze a reaction called biocatalysts. Formentation technologies: Large-scale production of bioactive compounds…
Wolf Rearrangement
Define : When an α-diazo ketone is decomposed thermally photo-chemically or catalytically and converted to ketone by removal of dinitrogen, it is called wolf rearrangement. The reaction was given by Ludwing Wolf in 1902. Reaction: When ketene is formed it acts as an intermediate for forming acid Ester and Amide. Mechanism of Wolf Rearrangement: Wolf…
Witting Reaction
The reaction in which aldehyde or ketone react with phosphorus ylide to give alkenes and triphenyl phosphine oxide. Actually ylide is a neutral molecule having a negative carbon adjacent to a positive heteroatoms. This phosphorus ylide is also called phosporanes. Thus phosphorus ylide is easily prepared from triphenyl phosphine and primary or secondary alkyl halides….
Pinacole-pinacolone rearrangement
An Acid catalyzed rearrangement in which 1,2-diol or pinacole is converted to carbonyl compound is called pinacole- pinacolone rearrangement. Pinacole : 2,3- dimethyl butane-2,3-diol Pinacolone :3,3-dimethyl-2- butanone Reaction of Pinacole-pinacolone rearrangement: Mechanism of pinacole-pinacolone rearrangement: Mechanism of pinacole-pinacolone rearrangement takes place in four steps Step(01): In this step hydroxyl group of pinacole is protonated by…