Kabita Sharma 
Chemotherapy is one of the most widely used and effective cancer treatments. It kills rapidly developing cells, such as cancer cells, and prevents them from proliferating. Chemotherapy medications may be administered differently depending on the type of cancer and the … Read more
Silicon carbide is a compound of silicon and carbon. It is also known as Carborundum. Edward Acheson of Pennsylvania discovered silicon carbide in 1891. Because of its excellent combination of physical and electrical features, silicon carbide (SiC) is a wide … Read more
mCPBA (Meta-chloroperoxybenzoic acid ) is a peroxycarboxylic acid with the chemical formula C7O3H5Cl. It is a white crystalline powder with a melting point of 90 degrees Celsius. mCPBA is a powerful oxidising agent that is commonly employed as an oxidant … Read more
PCC (Pyridinium chlorochromate) is an oxidizing agent with the formula [C5H5NH]+[CrO3Cl]. It is a reagent in chemical synthesis that is mostly used to oxidize alcohols to generate carbonyls. Corey and associates first developed pyridinium chlorochromate, which is a stable orange solid … Read more
Meta directors are deactivating groups on benzene that direct the electrophile E to the meta position. In comparison to hydrogen, deactivating groups slow down the rate of electrophilic aromatic substitution. Substituents that pull electron density away from nearby carbocations (e.g., CF3, … Read more
Imine is a chemical molecule with a carbon-nitrogen double bond (C=N). They have a C=N link rather than a C=O bond, and are the nitrogen analogs of aldehydes and ketones. So they are compounds with a carbon-nitrogen double bond – … Read more
ortho para directors are electron donating groups on benzene that direct the electrophile E to the ortho- (1,2) and para- (1,4) positions. They are also known as ring-activating groups. For example, when aniline is chlorinated, the resulting products are ortho … Read more
Quaternary ammonium salts are chemical compounds with the formula NR+4X–, where R is an alkyl or aryl group and X is an anion (typically a halide ion). The quaternary ammonium cations are always positively charged. In aliphatic salt, the central … Read more
Phase transfer catalysis (PTC), which allows reactions to be carried out on a wide scale and under mild conditions, is a practical and helpful technique for the synthesis of carbohydrates. Starks used the term phase-transfer catalysis in 1971 to describe … Read more