A nucleophile is an electron pair donor that tends to bind to electropositive species during a reaction, and since nuclei are electropositive, "nucleophile" means &quo...
Jul 29, 2022
Carbonyl compounds refer to a class of compounds containing carbonyl groups. Depending on the environment, carbonyl compounds can refer to: the collective name of aldehydes, ket...
Isopropylidene malonate is an organic compound that is a white solid at room temperature and decomposes when heated. It is an important organic synthesis raw material. It can ca...
Jul 28, 2022
Ordered mesoporous materials are based on the supramolecular structure formed by surfactants as a template. Using the sol-gel process, through the directional interaction betwee...
Mesoporous materials have the characteristics of extremely high specific surface area, regular and ordered pore structure, narrow pore size distribution, and continuously adjust...
Jul 27, 2022
Knoevenagel refers to the aldol condensation of compounds with active methylene groups with aldehydes and ketones under the catalysis of basic substances such as ammonia, amines...
Pechmann condensation was discovered and first reported by German chemist Hans von Pechmann. Coumarin compounds were synthesized by the reaction of phenols and β-keto acids unde...
Jul 26, 2022
The Thorpe reaction is a reaction in which aliphatic nitriles self-condense under base catalysis to form enamines. It was first discovered by Jocelyn Field Thorpe.
Heat flux refers to the heat energy passing through a unit area per unit time. It is a directional vector, and its unit in the International System of Units is W/㎡, that is, wat...
Jul 25, 2022
forced convection It is a type of convective heat transfer, the forced convection of air caused by mechanical action.
The grafting point is the starting point for the formation of grafted side chains on the main chain during the graft polymerization process. There are three methods for generati...
Jul 22, 2022
The properties of graft copolymers depend on the composition, structure, length and number of branches of the main chain and branch. Long-chain branched grafts are similar to bl...
