3kloorofenyyli

3kloorofenyyli is the Finnish name for the chemical substituent known in English as the 3-chlorophenyl group. This aryl substituent arises from chlorobenzene by removing one hydrogen, yielding a benzene ring with a chlorine atom at the meta (3) position relative to the point of attachment to the rest of the molecule. It is one of three monochloro­phenyl isomers, the others being 2-chlorophenyl (ortho) and 4-chlorophenyl (para). As a substituent, the meta-chloro phenyl group has the formula C6H4Cl when considered as part of a larger compound.

In organic synthesis, 3-chlorophenyl groups are used as building blocks for constructing more complex molecules. The carbon–chlorine bond can participate in various cross-coupling and substitution reactions, enabling the formation of biaryl and other enlarged structures. The meta orientation of the chlorine can influence regioselectivity and reactivity in subsequent steps, making this isomer a common choice in medicinal chemistry, dye chemistry, and agrochemical development.

Safety and handling of materials containing the 3-chlorophenyl group follow standard practices for chlorinated aromatics. Exposure should be minimized, and appropriate protective equipment used. These compounds can be irritants and may pose environmental concerns if improperly managed, so they are typically handled in well-ventilated facilities with proper waste disposal and environmental controls.