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Fluorobenzaldehyde isomers Name o-Fluorobenzaldehyde m-Fluorobenzaldehyde p-Fluorobenzaldehyde Structure: Systematic name: 2-Fluorobenzaldehyde 3-Fluorobenzaldehyde 4-Fluorobenzaldehyde Molecular formula: C 7 H 5 FO C 7 H 5 FO C 7 H 5 FO Molar mass: 124.11 g/mol 124.11 g/mol 124.11 g/mol CAS number: 446-52-6 456-48-4 459-57-4 EC number 207-171 ...
4-Chlorobenzaldehyde (o-Chlorobenzaldehyde) is an organic compound with the formula ClC 5 H 4 CHO. It is one of three isomeric monochlorinated benzaldehydes . Preparation
2-Chlorobenzaldehyde (o-chlorobenzaldehyde) is an organic compound with the formula ClC 5 H 4 CHO. It is one of three isomeric monochlorinated benzaldehyde. 3-Chlorobenzaldehyde and 4-chlorobenzaldehyde are the other isomers. Whereas benzaldehyde is prone to autoxidation, the 2-chloro derivatives are more air-stable.
2-Chloro-6-fluorobenzaldehyde is prepared by oxidation of 2-chloro-6-fluorotolulene by chromyl chloride. [3] It reacts with sodium hydroxide to give a mixture of 2-chloro-6-fluorobenzene and 6-chlorosalicaldehyde. [4] 2-Chloro-6-fluorobenzaldehyde is used in the production of the antiseptics dicloxacillin and flucloxacillin.
An easy example is that of CFC-12, which gives: 90+12=102 -> 1 carbon, 0 hydrogens, 2 fluorine atoms, and hence 2 chlorine atoms resulting in CCl 2 F 2. The main advantage of this method of deducing the molecular composition in comparison with the method described in the paragraph above is that it gives the number of carbon atoms of the molecule.
H 2 C=CH 2 + HCl → CH 3 CH 2 Cl. In oxychlorination, hydrogen chloride instead of the more expensive chlorine is used for the same purpose: CH 2 =CH 2 + 2 HCl + 1 ⁄ 2 O 2 → ClCH 2 CH 2 Cl + H 2 O. Secondary and tertiary alcohols react with hydrogen chloride to give the corresponding chlorides.
CFT is used to prepare 2-chloro-6-fluorobenzaldehyde via oxidation with hydrogen peroxide, which forms an aldehyde group. [ 2 ] CFT is also used in the preparation of 4-chloro-1 H -indazole .
Chlorofluoromethane or Freon 31 is the hydrochlorofluorocarbon (HCFC) with the formula CH 2 ClF. It is a colorless, odorless, flammable gas. [ 1 ] It is a class II ozone depleting substance and in accordance with the montreal protocol, its production and import were banned on 1 January 2015.