22311-25-7

Basic information

• Product Name: 1,2,3,4-tetrabromobenzene
• Synonyms: 1,2,3,4-TETRABROMOBENZENE
• CAS NO: 22311-25-7
• Molecular Formula: C₆H₂Br₄
• Molecular Weight: 393.6961
• Mol File: 22311-25-7.mol

Chemical Properties

• Boiling Point: 334.5°C at 760 mmHg
• Flash Point: 152.5°C
• Density: 2.553g/cm³
• Vapor Pressure: 0.000248mmHg at 25°C
• Refractive Index: 1.661
• CAS DataBase Reference: 1,2,3,4-tetrabromobenzene(CAS DataBase Reference)
• NIST Chemistry Reference: 1,2,3,4-tetrabromobenzene(22311-25-7)
• EPA Substance Registry System: 1,2,3,4-tetrabromobenzene(22311-25-7)

Safety Data

• Hazardous Substances Data: 22311-25-7(Hazardous Substances Data)

Upstream product

• 30332-28-6 Pentabromphenylhydrazin 
• 87-82-1 hexabromobenzene 
• 608-90-2 pentabromobenzene 
• 13665-98-0 pentabromoaniline 

Downstream Products

• 686349-04-2 2,3,4,5-tetrabromo-benzenesulfonic acid 
• 615-54-3 1,2,4-tribromobenzene 
• 60631-83-6 4’-Bromo-[1,1’:3’,1”]terphenyl 
• 199014-92-1 2,3-Dibromo-1,4-bis-(3-cyclohexyl-prop-1-ynyl)-benzene 
• 199014-90-9 2,3-Dibromo-1,4-bis-{[dimethyl-(1,1,2-trimethyl-propyl)-silanyl]-ethynyl}-benzene 
• 223650-63-3 dimethyl-[2-(2,3,4-tribromo-phenylethynyl)-phenylethynyl]-(1,1,2-trimethyl-propyl)-silane 
• 223650-65-5 2,3-Dibromo-1,4-bis-(2-{[dimethyl-(1,1,2-trimethyl-propyl)-silanyl]-ethynyl}-phenylethynyl)-benzene 
• 53170-75-5 1,2,3,4-tetrakis(dimethylsilyl)benzene 
• 865852-78-4 2,3-dibromo-1,4-di(oct-1-ynyl)benzene 
• 946409-74-1 1,2,3,4-tetrakis[(4-tert-butyl-2-formylphenyl)ethynyl]benzene 
• 946409-78-5 2,3-dibromo-1,4-bis[(4-tert-butyl-2-formylphenyl)ethynyl]benzene 
• 199014-97-6 2-Ethynyl-3-iodo-1,4-di-pent-1-ynyl-benzene 
• 199014-94-3 (2-Bromo-3,6-di-pent-1-ynyl-phenylethynyl)-trimethyl-silane 
• 865852-99-9 2-iodo-1,4-di(pent-1-ynyl)-3-[(trimethylsilyl)ethynyl]benzene 

Relevant articles and documents

(η6-[7]Heliphene)tricarbonylchromium via an Optimized Preparation of [7]Heliphene

Optimized procedures to [7]heliphene are described that allowed the synthesis of (η6-[7]heliphene)tricarbonylchromium and a preliminary exploration of its chemical behavior. DFT calculations provide structural and energetic information on this complex and its haptomeric isomers. Attempts to prepare the corresponding ([7]heliphene)chromium sandwich failed so far, but DFT evidence is presented to indicate that the target should be accessible.

Regioselectivity of reductive debromination of substituted pentabromobenzenes with sodium tert-butoxide in DMSO

The regioselectivity of reductive debromination of substituted pentabromobenzenes C6Br5X (X = NH2, OMe, Me, H, Cl, F, and NO2) under the action of ButONa in DMSO containing ButOH has been studied. The reaction followed the halophilic mechanism via carbanions.

Generation of synthetic equivalents of benzdiynes from benzobisoxadisiloles

Linear and angular benzobisoxadisiloles 14 and 16 can serve as the precursors for stepwise generations of the syntetic equivalents of 1,4- and 1,3-benzdiynes. Benzynes generated were trapped as [4+2] cycloaddition products. Two identical or different ring