811720-26-0

Basic information

• Product Name: Benzene, 1,5-dibromo-2,3,4-trichloro-
• CAS NO: 811720-26-0
• Molecular Formula: C6HBr2Cl3
• Molecular Weight: 339.241
• Mol File: 811720-26-0.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: Benzene, 1,5-dibromo-2,3,4-trichloro-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzene, 1,5-dibromo-2,3,4-trichloro-(811720-26-0)
• EPA Substance Registry System: Benzene, 1,5-dibromo-2,3,4-trichloro-(811720-26-0)

Safety Data

• Hazardous Substances Data: 811720-26-0(Hazardous Substances Data)

Upstream product

• 87-61-6 1,2,3-trichlorobenzene 
• 915144-97-7 trimethyl(2,3,4-trichlorophenyl)silane 
• 915144-98-8 2,3,4-trichloro-1,5-phenylenebis(trimethylsilane) 

Downstream Products

• 51-39-8 3,4,5-trichlorobenzoic acid 
• 21928-51-8 5-bromo-1,2,3-trichloro-benzene 
• 81067-37-0 1-bromo-2,3,4-trichlorobenzene 

Relevant articles and documents

Proton mobility in 2-substituted 1,3-dichlorobenzenes: "ortho" or "meta" metalation?

Nine 1,3-dichlorobenzene congeners were selected as model compounds to assess the relative rates of proton abstraction from 4- and 5-positions ("ortho" vs. "meta" metalation). Using lithium 2,2,6,6-tetramethylpiperidide as the basic reagent, the chlorine-adjacent 4-position underwent metalation exclusively. In contrast, attack at the chlorine-remote 5-posi" tion became significant even in the case of moderately sized 2-substituents (such as dimethylamino or ethyl) when secbutyllithium was employed. The "ortho/para" (4-/5-) ratios ranged from 80:20 to 65:35. The more pronounced "meta-orienting" effect of silicon as opposed to carbon substituents can be attributed to dissimilarities in the n polarization of the aromatic ring. Wiley-VCH Verlag GmbH & Co. KGaA, 2006.