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PhF behaves rather differently from other halobenzene derivatives owing to the pi-donor properties of fluoride. For example, the para position is more activated than benzene toward electrophiles. For this reason, it can be converted to 1-bromo-4-fluorobenzene with relatively high efficiency. [3]
They have the formula C 6 H 6–n F n, where n = 1–6 is the number of fluorine atoms. Depending on the number of fluorine substituents, there may be several constitutional isomers possible. [1] Monofluorobenzene; Difluorobenzene. 1,2-Difluorobenzene; 1,3-Difluorobenzene; 1,4-Difluorobenzene; Trifluorobenzene. 1,2,3-Trifluorobenzene; 1,2,4 ...
1-Bromo-3-chlorobenzene: by (3-chlorophenyl)trimethylgermanium by electrophilic substitution [2] [better source needed] 1-Bromo-4-chlorobenzene: From a derivative of (4-bromophenyl)silane using N-bromosuccinimide [3] From 4-chlorophenol using triphenylphosphine dibromide [4] or phenylphosphorus tetrachloride [5]
1,4-Dichlorobenzene (1,4-DCB, p-DCB, or para-dichlorobenzene, sometimes abbreviated as PDCB or para) is an aryl chloride and isomer of dichlorobenzene with the formula C 6 H 4 Cl 2. This colorless solid has a strong odor. The molecule consists of a benzene ring with two chlorine atoms (replacing hydrogen atoms) on opposing sites of the ring.
1,2-Difluorobenzene, also known as DFB, is an aromatic compound with formula C 6 H 4 F 2. This colorless flammable liquid is a solvent used in the electrochemical studies of transition metal complexes. Compared to most conventional halogenated aliphatic and aromatic solvents, it possesses an exceptionally high dielectric constant (ε 0 = 13.8 ...
1,4-Dibromobenzene [2] [3] [4] Structure Molecular formula: C 6 H 4 Br 2: Molar mass: 235.906 g/mol Appearance colorless liquid colorless liquid white solid CAS ...
4-Fluorobromobenzene is synthesized via bromination of fluorobenzene in the presence of a Lewis acid catalyst such as iron(III) bromide or aluminium tribromide. [2]4-Bromofluorobenzene is regarded by the Toxic Substances Control Act as a high production volume chemical, that is, a chemical that 1 million pounds (about 500 tonnes) per year is either produced in or imported to the United States.
A laboratory route to 2- and 4-chlorotoluene proceeds from 2- and 4-toluidines (i.e. 2- and 4-aminotoluene). These compounds are diazotized followed by treatment with cuprous chloride. [1] Industrially, the diazonium method is reserved for 3-chlorotoluene. The industrial route to 2- and 4-chlorotoluene entails direct reaction of toluene with ...