- #1
Entanglement
- 439
- 13
Why does CH3 direct the new coming radical to Para and ortho while COOH directs it to meta?
The terms meta, para, and ortho refer to the relative positions of substituents on a benzene ring. These positions are named based on the number of carbon atoms between the substituents and the functional group on the benzene ring.
The positions of substituents on a benzene ring can greatly influence the reactivity of a compound. For example, ortho and para positions are typically more reactive than the meta position due to the closer proximity of the substituents to the functional group.
Meta, para, and ortho isomers are different forms of a compound that have different arrangements of substituents on a benzene ring. Meta isomers have the substituents in the meta position, para isomers have them in the para position, and ortho isomers have them in the ortho position.
The positions of substituents on a benzene ring can be determined using a variety of techniques, including spectroscopy and X-ray crystallography. In some cases, the positions can also be predicted based on the electronic effects of the substituents.
Some common examples of compounds with meta, para, and ortho positions include toluene (methylbenzene), which has a methyl group in the para position, aniline (aminobenzene), which has an amino group in the ortho position, and benzoic acid, which has a carboxylic acid group in the meta position.