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1,2-Dibromobenzene (o-dibromobenzene) is an aryl bromide and isomer of dibromobenzene. It is one of three isomers, the others being 1,3- and 1,4-dibromobenzene. It is a colorless liquid, although impure samples appear yellowish. The compound is a precursor to many 1,2-disubstituted derivatives of benzene.
C 6 H 4 Br 2: Molar mass: 235.906 g/mol Appearance colorless liquid colorless liquid white solid CAS number [583-53-9] [108-36-1] [106-37-6] Properties Density and phase: 1.9940 g/ml, liquid 1.9523 g/ml, liquid 1.84 g/ml, solid Solubility in water: practically insoluble Other solubilities Soluble in 70 parts ethanol. Soluble in benzene ...
If there are multiple functional groups of the same type, either prefixed or suffixed, the position numbers are ordered numerically (thus ethane-1,2-diol, not ethane-2,1-diol.) The N position indicator for amines and amides comes before "1", e.g., CH 3 CH(CH 3)CH 2 NH(CH 3) is N,2-dimethylpropanamine.
IUPAC nomenclature is used for the naming of chemical compounds, based on their chemical composition and their structure. [1] For example, one can deduce that 1-chloropropane has a Chlorine atom on the first carbon in the 3-carbon propane chain.
2 and triphenylphosphine (PPh 3 ), tetrabutylammonium iodide (TBAI) as a phase-transfer catalyst , and sodium hydroxide as a base. Below is an example reaction of 1,3-dibromobenzene to isophthalic acid .
The IUPAC's rules for naming organic and inorganic compounds are contained in two publications, known as the Blue Book [1] [2] and the Red Book, [3] respectively. A third publication, known as the Green Book , [ 4 ] recommends the use of symbols for physical quantities (in association with the IUPAP ), while a fourth, the Gold Book , [ 5 ...
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The most widely used synthetic route to DBA utilizes electrophilic borylation chemistry as the key transformation, [6] [7] which dates to 1969 from Seibert et al. [8] and 1998 from Eisch et al. [9] Starting with the commercially available chemical 1,2-dibromobenzene, lithium-halogen exchange [10] followed by silylation yields 1,2-bis(trimethylsilyl) benzene as the intermediate.