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Aniline reacts with strong acids to form the anilinium (or phenylammonium) ion (C 6 H 5 −NH + 3). [ 20 ] Traditionally, the weak basicity of aniline is attributed to a combination of inductive effect from the more electronegative sp 2 carbon and resonance effects, as the lone pair on the nitrogen is partially delocalized into the pi system of ...
Bromine water, Br 2. Bromine water is an oxidizing, intense brown mixture containing diatomic bromine (Br 2) dissolved in water (H 2 O). [1] It is often used as a reactive in chemical assays of recognition for substances which react with bromine in an aqueous environment with the halogenation mechanism, mainly unsaturated carbon compounds (carbon compounds with 1 or more double or triple bond(s)).
The creation of sparks from metals is based on the pyrophoricity of small metal particles, and pyrophoric alloys are made for this purpose. [2] Practical applications include the sparking mechanisms in lighters and various toys, using ferrocerium; starting fires without matches, using a firesteel; the flintlock mechanism in firearms; and spark testing ferrous metals.
Nitrogen: 1.370 0.0387 Nitrogen dioxide: 5.354 0.04424 Nitrogen trifluoride [2] 3.58 0.0545 Nitrous oxide: 3.832 0.04415 Octane [2] 37.88 0.2374 1-Octanol [2] 44.71 0.2442 Oxygen: 1.382 0.03186 Ozone [2] 3.570 0.0487 Pentane: 19.26 0.146 1-Pentanol [2] 25.88 0.1568 Phenol [2] 22.93 0.1177 Phosphine: 4.692 0.05156 Propane: 8.779 0.08445 1 ...
The anion reacts with bromine in an α-substitution reaction to give an N-bromoamide. Base abstraction of the remaining amide proton gives a bromoamide anion. The bromoamide anion rearranges as the R group attached to the carbonyl carbon migrates to nitrogen at the same time the bromide ion leaves, giving an isocyanate.
Aniline absorbs in the K (220 - 250 nm) and the B (250 - 290 nm) bands exhibited by benzenoid compounds. The K and B bands arise from π to π* transitions as a result of the a group containing multiple bond being attached to the benzene ring. When dissolved in ethanol, λ max for aniline is 230 nm, but in dilute aqueous acid λ max is 203 nm ...
In chemistry, azide (/ ˈ eɪ z aɪ d /, AY-zyd) is a linear, polyatomic anion with the formula N − 3 and structure − N=N + =N −.It is the conjugate base of hydrazoic acid HN 3. Organic azides are organic compounds with the formula RN 3, containing the azide functional group. [1]
NBS reacts with alkenes in aqueous solvents to give bromohydrins. The preferred conditions are the portionwise addition of NBS to a solution of the alkene in 50% aqueous DMSO, DME, THF, or tert-butanol at 0 °C. [3] Formation of a bromonium ion and immediate attack by water gives strong Markovnikov addition and anti stereochemical selectivities ...