WebOct 25, 2015 · In phenol, the $-\ce{OH}$ group activates the benzene ring towards electrophilic substitution. But why is it that the electrophilic bromination of phenol gives trisubstitution (forming 2,4,6-tribromophenol) when aqueous bromine is used, but monosubstitution (either 2- or 4-bromophenol) when a $\ce{CCl4}$ solution of bromine is … WebMar 8, 2024 · When phenol is treated with bromine at low temperature in a solvent, such as carbon disulphide or chloroform, a mixture of o-bromophenol and p-bromophenol is obtained. p-bromophenol is the major product. When phenol is treated with bromine water, it gives a white precipitate of 2, 4, 6-tribromophenol. Nitration of Phenol
Reaction of bromine and chlorine with phenolic ... - ScienceDirect
WebAug 10, 2024 · The difference in the reaction of phenol with bromine in chloroform and bromine in water medium is due to : (A) Hyperconjugation in substrate (B) Polarity of … WebTechnically the reaction of molten phenol with chlorine gas can be controlled to yield either a mixture of o-and p-chlorophenols (which are separable by distillation), 2,4-dichlorophenol or 2,4,6-trichlorophenol. ... TBPTP has a bromine content of 63, and an LOI of 53, thermal stability of 237 °C for initial decomposition and 50% decomposition ... dick smith logan
7.4.3 Reactions of Phenol - Save My Exams
WebApr 7, 2024 · Bromine reacts with alkenes and alkynes through addition reactions and with aldehydes through oxidation (Figure 6.53). It gives no reaction with aromatics, making this a good test to distinguish alkenes from aromatics. Figure 6.53: Reaction of an alkene, alkyne, and aldehyde with bromine. WebThe action of bromine on phenol can be explained as: (i) Reaction with bromine in water: Phenol reacts with bromine water to give 2,4,6-tribromophenol. (ii) Reaction with bromine in CS2: Phenol reacts with bromine in a presence of Carbon disulphide to form a mixture of o-bromophenol and p-bromophenol. WebDoes bromine water react with phenol? Reaction with bromine water If bromine water is added to a solution of phenol in water, the bromine water is decolourised and a white precipitate is formed which smells of antiseptic. The precipitate is 2,4,6-tribromophenol. Notice the multiple substitution around the ring - into all the activated positions. citrus park apartments covina