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Diborane(6), commonly known as diborane, is the chemical compound with the formula B 2 H 6.It is a highly toxic, colorless, and pyrophoric gas with a repulsively sweet odor. . Given its simple formula, borane is a fundamental boron compou
The structure of the azoxy functional group, where R is a substituent. In chemistry, azoxy compounds are a group of organic compounds sharing a common functional group with the general structure R−N=N + (−O −)−R. [1] They are considered N-oxides of azo compounds. Azoxy compounds are 1,3-dipoles and cycloadd to double bonds.
The reactivity of a functional group can be modified by other functional groups nearby. Functional group interconversion can be used in retrosynthetic analysis to plan organic synthesis. A functional group is a group of atoms in a molecule with distinctive chemical properties, regardless of the other atoms in the molecule. The atoms in a ...
For example, a chloride -Cl group may often be replaced by a trifluoromethyl -CF 3 group or by a cyano -C≡N group. Depending on the particular molecule used, the substitution may result in little change in activity, or either increased or decreased affinity or efficacy - depending on what factors are important for ligand binding to the target ...
The catalytic hydrogenation of nitriles is often the most economical route available for the production of primary amines. [3] Catalysts for the reaction often include group 10 metals such as Raney nickel, [4] [5] [6] palladium black, or platinum dioxide. [1]
The stable phase at room temperature and pressure is α-NaBH 4, which is cubic and adopts an NaCl-type structure, in the Fm 3 m space group. At a pressure of 6.3 GPa, the structure changes to the tetragonal β-NaBH 4 (space group P42 1 c) and at 8.9 GPa, the orthorhombic γ-NaBH 4 (space group Pnma) becomes the most stable. [12] [13] [14]
In organic chemistry, functionality is often used as a synonym for functional group. For example, a hydroxyl group can also be called a HO-function. [1] [2] Functionalisation means the introduction of functional groups, for example the functionalisation of a surface [3] (e.g. silanization for the specific modification of the adhesion of a surface)
In organic chemistry, carbonyl reduction is the conversion of any carbonyl group, usually to an alcohol. It is a common transformation that is practiced in many ways. [ 1 ] Ketones , aldehydes , carboxylic acids , esters , amides , and acid halides - some of the most pervasive functional groups , -comprise carbonyl compounds.