Why is meta position more stable?

p-Chlorotoluene first gives benzyne with methyl as substituent. When -NH2 attacks at carbon which is bearing triple bond it gives mixture of meta and para-toluidine. Major product is m-toluidine because carbanion formed at meta position by attack of nucleophile is more stable comapre to para position.

Which of the following is most stable in benzene?

Triphenyl methyl cation has three benzene resonating ring so it is most stable compound.

What is ortho position of benzene?

The relative position of substituents in double-substituted benzenes is indicated by the prefixes ortho (o), meta (m) and para (p). The substituent’s relative position in ortho-substituted benzenes is “1,2”. It is common usage and allowed to use other parent names as benzene, such as toluene, phenol, and benzoic acid.

Why are benzene rings so stable?

As we all know that benzene is an aromatic compound, moreover in benzene the structure represents as follows. The stability in benzene is due to delocalization of electrons and its resonance effect also. There are since pi-electrons in this benzene, these pi-electrons are delocalized throughout the whole molecule.

What is ortho para and meta position in benzene ring?

The relative position of substituents in double-substituted benzenes is indicated by the prefixes ortho (o), meta (m) and para (p). The substituent’s relative position in ortho-substituted benzenes is “1,2”. It is “1,3” in meta-substituted benzenes and “1,4” in para-substituted benzenes.

Where are ortho meta and para positions?

Ortho, meta, and para substitution In ortho-substitution, two substituents occupy positions next to each other, which may be numbered 1 and 2. In the diagram, these positions are marked R and ortho. In meta-substitution the substituents occupy positions 1 and 3 (corresponding to R and meta in the diagram).