CCl 3 –CH 3 CF 3 –CHClBr
1,1,1-trichloroethane 2-bromo-2-chloro-1,1,1-trifluoroethane (Halothane)
2) Vinyl halides: a halogen atom is bonded to an sp^2 -hybridized carbon.
3) Aryl halides: a halogen atom is bonded to an sp^2 -hybridized aromatic carbon.
CC
X
X
A vinylic halide A phenyl halide or aryl halide
- Importantance of Organohalogen Compounds:
- Solvents:
i) Alkyl halides are used as solvents for relatively non-polar compounds.
ii) CCl 4 , CHCl 3 , CCl 3 CH 3 , CH 2 Cl 2 , ClCH 2 CH 2 Cl, and etc.
- Solvents:
2) Reagents:
i) Alkyl halides are used as the starting materials for the synthesis of many
compounds.
ii) Alkyl halides are used in nucleophilic reactions, elimination reactions,
formation of organometallics,.and etc.
3) Refrigerants: Freons (ChloroFluoroCarbon)
4) Pesticides: DDT, Aldrin, Chlordan
C
CCl 3
Cl Cl
H
Cl
Cl
H
H 3 CCH 3
Cl
DDT Plocamene B
[1,1,1-trichloro-2,2- insecticidal activity against mosquito
bis(p-chlorophenyl)ethane] larvae, similar in activity to DDT