Found 20 Articles for Named Reactions

Introduction Named reactions are organic reactions that are named after the discovery made by the corresponding scientist. Many named reactions are economically and commercially very useful. Finkelstein reaction is one such named reaction present in organic chemistry. Finkelstein's reaction is introduced by the German chemist Hans Finkelstein. It is an important organic reaction and is named after the scientist's name. It is also an equilibrium reaction that follows substitution nucleophilic bi molecular reaction. It is an organic exchange reaction in which one halogen atom present in a particular compound has been exchanged with another halogen atom from a different compound. ... Read More

Introduction Dehydration synthesis describes the formation of larger molecules from the smaller reactant molecules along with the loss of a water molecule. A dehydration reaction is a subpart of a condensation reaction where water is the most common by-product. In the process of Dehydration synthesis, two smaller molecules are joined chemically while removing elements from both the reactant molecules and forming a new covalent bond. Dehydration means the loss of water and synthesis means the formation of a new molecule. In biological systems, dehydration synthesis refers to the formation of biological polymers by the addition of monomers which is again ... Read More

Introduction A conjugated diene binds with only an alkene to form a cyclohexene compound in either the Diels-Alder mechanism. Around the mid-1900s, Otto Diels, a researcher at the University of Kiel in Germany, had been experimenting with his student Kurt Alder to discover a mechanism that might readily generate additional cyclo hexagonal rings. They worked together to develop the Diels-Alder reaction, for which they have also been awarded a Nobel Prize in Chemistry. It is often used to synthesise rubber, plastic, or even artificial steroids including cortisol as well as vitamin D. This reaction is indeed only a one-step process ... Read More

Introduction The Fischer Esterification Mechanism refers to the synthesis of carboxylic acid as well as alcohol into such an ester throughout the existence of a strong acid catalyst. Fischer Esterification is often named as Fischer-Speier Esterification, well after the scientists who invented it, Arthur Speir as well as Emil Fischer. Just in the availability of alcohol as well as heat could the reaction take place. They described the Fischer Esterification reaction for the first time in 1895. The Fischer Esterification process is reversible in general. $\mathrm{H_{2}SO_{4}}$, p-toluene sulfonic acid, as well as Lewis acids including $\mathrm{C_{3}F_{9}O_{9}S_{3}Sc}$(Scandium triflate) are popular catalysts ... Read More

Introduction Ullmann reaction is a coupling reaction between aryl halide molecules. Fritz Ullmann was a German chemist who first noticed this type of reaction and this reaction is called the Ullmann reaction after his name. Copper plays an important role throughout the entire coupling mechanism. Meaning of Ullmann Reaction Ullmann coupling or Ullmann reaction means a reaction is carried out for coupling two aryl halide molecules for the formation of biaryl compounds using some thermal conditions and copper catalyst. There are different reaction mechanisms for Ullmann reactions and two of them are very popular. In the radical mechanism process, an ... Read More

Introduction The formation of carbon-carbon (C-C) bonds is a key process in benzoin condensation. It is accomplished by producing an acyl anion equivalent from 1 aldehyde molecule and then adding it to another. Usually, a cyanide ion catalyses the process. The 1$\mathrm{^{st}}$ intermediate is cyanohydrin anion, which is the precursor to the acyl anion equivalent. Plants contain cyanohydrins as glycosides. In our bodies, a process very similar to benzoin condensation occurs, although it does not include cyanohydrin intermediates and is not catalysed by cyanide ions. The thiazolium moiety of the coenzyme thiamine pyrophosphate catalyses it (TPP). Definition and Meaning of ... Read More

Introduction To assess metabolically reducing sugars, they are commonly determined in the food sector, biological research, and biopharmaceutical quality control. Common detection techniques are complicated, costly, or very polluting. Benedict's test (BT) for reducing sugars for value determination of glucose in urination was devised by Stanley R. Benedict. This method is still utilized in clinical, industrial, as well as laboratory settings to evaluate the qualitative makeup of reducing sugars. Benedict's reagents were designed to quickly identify reducing sugars by a colour change using non-corrosive steady alkaline chemicals. Although the method initially just showed the variation of glucose in a test ... Read More

Introduction To change oximes into amides, the Beckmann rearrangement is a reaction that is used widely. Since its discovery, the reaction's safety & viability have significantly improved. This study focuses on the development of the Beckmann rearrangement and how it has been used to improve the present synthesis of mass-produced, widely accessible molecules that were previously made using expensive, poisonous, and challenging to obtain reagents. The mid-1880s saw the discovery of the Beckmann rearrangement by scientist Ernst Otto Beckmann. As a result of the process, oximes are transformed into the equivalent amides, which then allow the nitrogen atom from the ... Read More

Introduction The Birch reduction is a reaction where arenes are transformed into cyclohexadiene. Prof. Arthur J. Birch, an Australian chemist who determined the product's structure in the reduction reaction as a 1, 4-cyclohexadiene derivative in 1944, gave the reaction the name "Birch reduction." For the reduction of benzene (inactivated arenes), birch reductions generally use alkali metals (e.g., Li, Na, or K), which dissolve in Liq. ammonia to provide a solvated electron. Hence, the resulting solution is an astounding hue of blue, even though given metals are only faintly soluble in Liq. ammonia. The object has a deep blue colour because ... Read More

Introduction The Balz-Schiemann (BS) reaction was one of the first procedures for producing fluorinated aromatic compounds but is still commonly used today. The thermal breakdown of diazonium tetrafluoroborate by diazotization of the corresponding aromatic amines introduces a fluorine atom into aromatic rings in this process. This reaction is notably essential for the synthesis of fluorinated aromatic compounds, whose breakdown in the lack of solvent generally yields a reasonably excellent yield of aromatic fluorides. The BS reaction has been thoroughly studied or shown to be beneficial in the synthesis of aromatic halides. What is Balz Schiemann Reaction ? The BS reaction ... Read More