alpha,alpha’-Dibromo-p-xylene

alpha,alpha’-Dibromo-p-xylene Basic information
Product Name:alpha,alpha’-Dibromo-p-xylene
Synonyms:1,4-Di(brommethyl)-benzen;1,4-Dibromomethylbenzene;p-(Bromomethyl)benzene;p-alpha,alpha’-Dibromoxylene;p-Bis(bromomethyl)benzene;p-Xylene, alpha,alpha’-dibromo-;P-XYLYLENE BROMIDE;P-XYLIDENE DIBROMIDE
CAS:623-24-5
MF:C8H8Br2
MW:263.96
EINECS:210-781-1
Product Categories:Aromatics;Miscellaneous Reagents;Aromatic Halides (substituted);Aryl;Building Blocks;C8;Chemical Synthesis;Halogenated Hydrocarbons;Organic Building Blocks
Mol File:623-24-5.mol
alpha,alpha'-Dibromo-p-xylene Structure
alpha,alpha’-Dibromo-p-xylene Chemical Properties
Melting point 143-145 °C(lit.)
Boiling point 245 °C(lit.)
density 2.012
refractive index 1.614
Fp 155-158°C/14mm
storage temp. Keep in dark place,Sealed in dry,Room Temperature
solubility dioxane: soluble1g/10 mL (hot)
form Crystalline Powder and Coarse Crystals
color White to beige
Water Solubility soluble, hydrolyses
Sensitive Lachrymatory
BRN 1100019
CAS DataBase Reference623-24-5(CAS DataBase Reference)
NIST Chemistry ReferenceBenzene, 1,4-bis(bromomethyl)-(623-24-5)
EPA Substance Registry System1,4-Bis(bromomethyl)benzene (623-24-5)
Safety Information
Hazard Codes C
Risk Statements 34-22
Safety Statements 26-36/37/39-45
RIDADR UN 3448 6.1/PG 2
WGK Germany 3
8-19-21
Hazard Note Corrosive/Lachrymatory
TSCA Yes
HazardClass 8
PackingGroup III
HS Code 29039990
MSDS Information
ProviderLanguage
1,4-Bis(Bromomethyl)benzeneEnglish
SigmaAldrichEnglish
ACROSEnglish
ALFAEnglish
alpha,alpha’-Dibromo-p-xylene Usage And Synthesis
Chemical Propertieswhite to light yellow crystal powde
UsesIt is an important raw material and intermediate used in Organic Synthesis, Pharmaceuticals, Agrochemicals.
Synthesis Reference(s)Tetrahedron Letters, 35, p. 7055, 1994 DOI: 10.1016/0040-4039(94)88224-X
Purification MethodsDistil it under a vacuum and recrystallise it from EtOH, *benzene or chloroform. [Wenner Org Chem 17 527 1952, Beilstein 5 H 385, 5 I 187, 5 II 301, 5 III 859, 5 IV 970.]
alpha,alpha’-Dibromo-p-xylene Preparation Products And Raw materials
Raw materialsDichloromethane–>Carbon tetrachloride–>N-Bromosuccinimide–>Benzoyl peroxide–>Phosphorus tribromide–>P-XYLENE–>1,4-Benzenedimethanol–>NISTC502863–>Benzene, 1-(dibromomethyl)-4-methyl-–>Bis(bromomethyl) ether
Preparation Products1,4-Bis(imidazole-l-ylmethyl)benzene–>1,4-BENZENEDIMETHANETHIOL–>1,4-Phenylenediacetonitrile–>1,4-Bis(3-formylphenoxy)xylene

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