Write a detailed set of equations for the acetylation
reaction, and in particular show clearly that the reaction
can be regarded as a nucleophilic substitution, in which
the attacking nucleophile is aniline (attacking acetic
anhydride).
Monobromination of acetanilide occurs because the acetyl group (–C(=O)CH3) is an electron-withdrawing group that decreases the nucleophilicity of the aniline nitrogen, leading to selective bromination at the para position of the aromatic ring. In contrast, aniline has an amino group (–NH2), which is an electron-donating group that significantly increases the electron density on the aromatic ring, making it more reactive towards multiple bromination. Under the same conditions, the increased reactivity of aniline allows for tribromination to occur, as the ring can readily accommodate multiple bromine substitutions.
controlled variables
The catalysts can be used to increase or decrease the speed of a chemical reaction. The catalysts which reduce the speed of a reaction are called negative catalysts. They decrease the speed of the reaction by increasing the activation energy of the reaction.
in the survival of evironmental conditions
Ionic conditions are restored by pumps and channels that regulate the movement of ions across the cell membrane. Electrical conditions are restored by the movement of charged ions, such as sodium and potassium, which generates an electrochemical gradient across the cell membrane.
Monobromination of acetanilide occurs because the acetyl group (–C(=O)CH3) is an electron-withdrawing group that decreases the nucleophilicity of the aniline nitrogen, leading to selective bromination at the para position of the aromatic ring. In contrast, aniline has an amino group (–NH2), which is an electron-donating group that significantly increases the electron density on the aromatic ring, making it more reactive towards multiple bromination. Under the same conditions, the increased reactivity of aniline allows for tribromination to occur, as the ring can readily accommodate multiple bromine substitutions.
Acetanilide is a neutral compound and will not react with litmus paper, which is typically used to test for acidic or basic conditions. Therefore, there will be no observable change in the color of litmus paper when it comes in contact with acetanilide.
Acetic acid acts as a solvent in the preparation of para nitro acetanilide. It helps dissolve the reactants, making it easier for them to mix and react. Acetic acid also helps control the reaction conditions and stabilize intermediates formed during the synthesis process.
Actually it is possible to put a second acyl group on as well, for example with acetyl chloride and triethylamine. Under aqueous basic conditions the second acyl group is far more readily hydrolysed.
Terms and Conditions is correct.
"Under field conditions" is more idiomatic.
The conditions were BAD!
To what, under which conditions?
no conditions
what conditions do you mean
living conditions were horrid!!!
The "Goldilocks conditions" refer to conditions that are just right for a particular outcome. Three conditions for goldilocks conditions could include: 1) not too hot, 2) not too cold, and 3) optimal environment for growth or development.