What are aromatic nitro compounds?
❖ In modern perspective, aromatic nitro compounds are molecules in which –NO2 group is directly bonded to an aromatic ring. Nitro group structure (–NO2) ❖ The simplest aromatic nitro compound, nitrobenzene, also known as nitrobenzol, molecular formula C6H5NO2.
What are the methods of preparation of aromatic nitro compound?
Preparation of nitroarenes Aromatic hydrocarbons react with concentrated nitric acid directly or in the presence of strong acid catalyst namely sulphuric acid to form nitro derivatives. Since hydrogen is replaced by monovalent nitro group, this reaction is called nitration.
What are the general properties of aromatic nitro compounds?
Physical Properties of Nitro Compounds
- Physical state, color, odour: Nitroalkanes are colorless, pleasant smelling liquids.
- Boiling point: Both nitroalkanes and nitroarenes are highly polar compounds and thus have strong dipole-dipole interactions.
What are the product of nitro compound?
Explosive decomposition of organo nitro compounds are redox reactions, wherein both the oxidant (nitro group) and the fuel (hydrocarbon substituent) are bound within the same molecule. The explosion process generates heat by forming highly stable products including molecular nitrogen (N2), carbon dioxide, and water.
What is the formula of nitro?
Nitromethane, sometimes shortened to simply “nitro”, is an organic compound with the chemical formula CH. 3NO. 2. . It is the simplest organic nitro compound.
What is the functional group of nitro?
nitro compound, any of a family of chemical compounds in which the nitro group (―O―N=O) forms part of the molecular structure. The most common examples are organic substances in which a carbon atom is linked by a covalent bond to the nitrogen atom of the nitro group.
What is difference between nitro and nitrite?
The key difference between alkyl nitrite and nitro alkane is that in alkyl nitrite, the alkyl group is bonded to an oxygen atom, whereas in nitro alkane, the alkyl group binds with the nitrogen atom. Although the names alkyl nitrite and nitro alkane sound similar, they are two distinct types of organic compounds.
What are the uses of nitro compounds?
Many nitro compounds are commercially produced for use as explosives, solvents, or chemical intermediates (substances valued as raw materials in further chemical processing). A nitro compound ordinarily is made by the reaction, called nitration, between nitric acid and an organic compound.
Why aromatic nitro compounds are yellow in Colour?
UV The nitrogen from aromatic ring causes a pronounced shift of lmax to longer wavelengths when conjugated to unsaturated p systems, a bathochromic shift. This is why aromatic nitro compounds are often yellow.
Is nitro and nitrate the same?
Nitroglycerin is a type of nitrate.
What are the organic compounds with a nitro group?
Organic compounds containing a nitro group: 1. Nitro compounds in which the nitro group is bonded directly to a carbon atom (C NO 2 ). These include nitroaromatic compounds such as 2,4-dinitrotoluene (2,4-DNT), 2,4,6-trinitrotoluene (TNT) or picric acid, and nitroaliphatic compounds such as nitromethane.
What is the most widely used nitro aromatic compound?
The most widely used nitro aromatic compound is 2,4,6-trinitrotoluene (TNT). The manufacture, processing, and packaging of TNT at munitions plants has resulted in high concentrations of contaminants in soil and ground waters.
What are the characteristics of aromatic compounds?
Aromatic, Antiaromatic and Nonaromatic Compounds In a more specific, chemical sense, aromaticcompounds are defined as those which meet the following criteria: 1) The structure must be cyclic, and contain some number of conjugated bonds. 2) Each atom in the ring must have an unhybridized p orbital.
How are nitroaromatic compounds reduced by enzymes?
Nitroaromatic compounds are reduced by several nitroreductases, which are flavoprotein enzymes that catalyze the stepwise addition of up to six electrons, though the major metabolite is normally the hydroxylamine formed by addition of four electrons. Carmen Avendaño, J. Carlos Menéndez, in Medicinal Chemistry of Anticancer Drugs, 2008
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