6529-53-9

Basic information

• Product Name: 4-CHLOROPHENETHYL BROMIDE 97
• Synonyms: Benzene, 1-(2-bromoethyl)-4-chloro-;p-Chloro-beta-phenethyl bromide;p-Chlorophenethyl bromide;4-CHLOROPHENETHYL BROMIDE 97;1-Chloro-4-(2-bromoethyl)benzene, 4-Chloro-1-(2-bromoethyl)benzene;2-(4-Chlorophenyl)ethyl bromide;1-(2-Bromoethyl)-4-chlorobenzene;4-Chlorophenethyl bromide
• CAS NO: 6529-53-9
• Molecular Formula: C₈H₈BrCl
• Molecular Weight: 219.50612
• EINECS: 1312995-182-4
• Mol File: 6529-53-9.mol
• Article Data: 20

Chemical Properties

• Boiling Point: 76-78 °C0.3 mm Hg(lit.)
• Flash Point: >230 °F
• Appearance: Colorless to yellow/Liquid
• Density: 1.5080 g/mL at 25 °C(lit.)
• Vapor Pressure: 0.729mmHg at 25°C
• Refractive Index: n20/D 1.5715(lit.)
• Storage Temp.: Sealed in dry,Room Temperature
• CAS DataBase Reference: 4-CHLOROPHENETHYL BROMIDE 97(CAS DataBase Reference)
• NIST Chemistry Reference: 4-CHLOROPHENETHYL BROMIDE 97(6529-53-9)
• EPA Substance Registry System: 4-CHLOROPHENETHYL BROMIDE 97(6529-53-9)

Safety Data

• Hazard Codes: Xn,N
• Statements: 22-41-51/53
• Safety Statements: 26-36/37/39-61
• RIDADR: UN 3082 9 / PGIII
• WGK Germany: 2
• Hazardous Substances Data: 6529-53-9(Hazardous Substances Data)

Usage

Chemical Properties

Pale yellow oil

InChI:InChI=1/C8H17ClO/c1-3-8(4-2)7-10-6-5-9/h8H,3-7H2,1-2H3

Upstream product

• 75-21-8 oxirane 
• 873-77-8 (4-chlorphenyl)magnesium bromide 
• 1073-67-2 4-vinylbenzyl chloride 
• 106-39-8 bromochlorobenzene 
• 6948-71-6 toluene-4-sulfonic acid 2-(4-chloro-phenyl)-ethyl ester 
• 332-42-3 (2-bromoethyl)-4-fluorobenzene 
• 90867-09-7 4-Chloro-α-ethylbenzenium ion 
• 146404-41-3 C₁₅H₁₇ClN₂O₂S 
• 80019-71-2 methanesulfonic acid-2-(4-chlorophenyl)ethyl ester 
• 1875-88-3 2-(4-Chlorophenyl)ethanol 
• 52449-43-1 (4-chloro-phenyl)-acetic acid methyl ester 
• 141666-91-3 N-[2-(4-chlorophenyl)ethyl]-4-methylbenzenesulfonamide 
• 156-41-2 4-chlorophenylethylamine 

Downstream Products

• 101259-37-4 (4-chlorophenethyl)(methyl)sulfane 
• 92294-86-5 ethyl 2-[(4-chlorophenyl)ethyl]-3-oxobutanoate 
• 332-42-3 (2-bromoethyl)-4-fluorobenzene 
• 90867-09-7 4-Chloro-α-ethylbenzenium ion 
• 876926-04-4 2-bromo-1-[2-(4-chlorophenyl)ethyl]-1H-imidazole 
• 876926-07-7 1-[2-(4-chlorophenyl)ethyl]-2-iodo-1H-imidazole 
• 136704-00-2 1-(4-chlorophenethyl)-2-(2-cyano-2,2-diphenylethyl)pyridinium bromide 
• 312600-66-1 4-(4-chlorophenethyl)piperidine-1,4-dicarboxylic acid, 4-ethyl 1-t-butyl diester 
• 1382354-30-4 2-{3-(4-chlorophenethoxy)phenylamino}benzamide 
• 108940-59-6 4-(4-chlorophenyl)-2,2-dimethylbutan-1-ol 
• 1392825-43-2 1-chloro-4-(4-iodo-3,3-dimethylbutyl)benzene 

Relevant articles and documents

Preparation method of lorcaserin intermediate

The invention relates to a preparation method of a lorcaserin intermediate 1-[2-(4-chlorphenyl)-ethylamino]-2-propanol, which specifically comprises the following steps: carrying out bromination reaction on p-chlorophenethyl alcohol serving as a starting material to obtain 4-chlorphenyl ethyl bromide, and condensing with isopropanolamine to obtain a target product. Hydrobromic acid is used as a bromination reagent, potassium carbonate is used as a condensation reaction acid-binding agent, potassium iodide is used as a condensation reaction catalyst, the yield of the technological process is high, three wastes are few, the cost is low, the operation is simple, the safety is good, and industrial production requirements are met.

Preparation method for hemihydrate lorcaserin hydrochloride

The invention discloses a preparation method for hemihydrate lorcaserin hydrochloride. The preparation method comprises the following steps: (1) making a compound shown as a formula III react with ammonia to obtain a compound shown as a formula II; (2) under the protection of nitrogen gas, dissolving the compound shown as the formula II in an organic solvent, adding a hydrogen chloride solution of which the solvent is the organic solvent to salify, and adding water and cyclohexane to form a hemihydrate in order to obtain the compound shown as a formula I, wherein the organic solvent is isopropanol or 1,4-dioxane. In the preparation method disclosed by the invention, ammonium hydroxide substitutes for potassium carbonate in the prior art, so that unqualified ignition residues of a finial product caused by potassium chloride generated after salt removal can be avoided; an isopropoxide hydrochloride solution substitutes for the conventional hydrogen chloride gas, so that other impurities can be prevented from being introduced in a preparation process under the improper control of dosage and rate of the gas.

Scalable anti-Markovnikov hydrobromination of aliphatic and aromatic olefins

To improve access to a key synthetic intermediate we targeted a direct hydrobromination-Negishi route. Unsurprisingly, the anti-Markovnikov addition of HBr to estragole in the presence of AIBN proved successful. However, even in the absence of an added initiator, anti-Markovnikov addition was observed. Re-examination of early reports revealed that selective Markovnikov addition, often simply termed "normal" addition, is not always observed with HBr unless air is excluded, leading to the rediscovery of a reproducible and scalable initiator-free protocol.