Products Categories
CAS No.: | 63262-06-6 |
---|---|
Name: | 1,4-DIBROMO-2,5-DIIODOBENZENE |
Article Data: | 33 |
Molecular Structure: | |
Formula: | C6H2Br2I2 |
Molecular Weight: | 487.699 |
Synonyms: | 1,4-diiodo-2,5-dibromobenzene;1,4-dibromo-2,5-diiodo-benzene;2,5-dibromo-1,4-diiodobenzene;1,4-dibromo-2,5-diidobenzene;Benzene,1,4-dibromo-2,5-diiodo; |
Density: | 2.939g/cm3 |
Melting Point: | 163-165oC |
Boiling Point: | 377.174oC at 760 mmHg |
Flash Point: | 181.909oC |
Hazard Symbols: | Xi |
PSA: | 0.00000 |
LogP: | 4.42080 |
1.4-dibromobenzene
1,4-dibromo-2,5-diiodobenzene
Conditions | Yield |
---|---|
With sulfuric acid; iodine at 125 - 135℃; for 48h; Inert atmosphere; | 84% |
With sulfuric acid; iodine at 125 - 135℃; for 24h; | 81% |
With sulfuric acid; iodine at 130℃; for 8h; | 80% |
1,4-dibromo-2,5-diiodobenzene
Conditions | Yield |
---|---|
Stage #1: 2,5-dibromo-4-iodoaniline With sulfuric acid; acetic acid; sodium nitrite In water at 0 - 50℃; for 1h; Stage #2: With potassium iodide In water at 20 - 25℃; for 2h; | 83.3% |
1,4-dibromo-2-nitrobenzene
1,4-dibromo-2,5-diiodobenzene
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1.1: iron; acetic acid / water / 3 h / 50 °C / pH 4 - 5 2.1: N-iodo-succinimide / dimethyl sulfoxide / 2 h / 20 - 30 °C 3.1: sodium nitrite; sulfuric acid; acetic acid / water / 1 h / 0 - 50 °C 3.2: 2 h / 20 - 25 °C View Scheme |
Conditions | Yield |
---|---|
With bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide; triethylamine In toluene at 20℃; for 5h; Sonogashira Cross-Coupling; Inert atmosphere; | 99% |
1,4-dibromo-2,5-diiodobenzene
Conditions | Yield |
---|---|
With piperidine; bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide; triethylamine at 20℃; Inert atmosphere; | 99% |
1,4-dibromo-2,5-diiodobenzene
2-methyl-but-3-yn-2-ol
4,4‘-(2,5-dibromo-1,4-phenylene)bis(2-methylbut-3-yn-2-ol)
Conditions | Yield |
---|---|
With bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide; diisopropylamine In benzene at 20℃; Sonogashira coupling; Inert atmosphere; | 98% |
With bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide; triethylamine for 17h; Inert atmosphere; Reflux; | 9.3 g |
Conditions | Yield |
---|---|
With bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide; diisopropylamine In tert-butyl methyl ether at -78 - 60℃; for 7h; Sonogashira Cross-Coupling; | 98% |
1,4-dibromo-2,5-diiodobenzene
trimethylsilylacetylene
1,4-dibromo-2,5-bis-(trimethylsilylethynyl)benzene
Conditions | Yield |
---|---|
With bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide; diisopropylamine In benzene at 20℃; for 1h; Sonogashira coupling; | 97% |
With (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; copper(l) iodide; diethylamine at 0 - 20℃; for 8h; Inert atmosphere; | 92% |
With copper(l) iodide; diisopropylamine; bis-triphenylphosphine-palladium(II) chloride In tetrahydrofuran at 20℃; for 12h; Sonogashira cross-coupling; | 90% |
1,4-dibromo-2,5-diiodobenzene
phenylboronic acid
2’,5’-dibromo-1,1’:4’,1’’-terphenyl
Conditions | Yield |
---|---|
With tris-(dibenzylideneacetone)dipalladium(0); potassium carbonate; tris-(o-tolyl)phosphine In water; toluene for 12h; Suzuki-Miyaura Coupling; Inert atmosphere; Schlenk technique; Heating; | 96% |
With tris-(dibenzylideneacetone)dipalladium(0); potassium carbonate; tris-(o-tolyl)phosphine In water; toluene at 90℃; for 12h; | 96% |
With bis-triphenylphosphine-palladium(II) chloride; potassium carbonate; triphenylphosphine In water; toluene for 24h; Suzuki Coupling; Reflux; Inert atmosphere; | 90% |
tributyl(thien-2-yl)stannane
1,4-dibromo-2,5-diiodobenzene
1,4-bis(2-thienyl)-2,5-dibromobenzene
Conditions | Yield |
---|---|
With bis-triphenylphosphine-palladium(II) chloride In N,N-dimethyl-formamide at 80℃; for 40h; Inert atmosphere; Schlenk technique; | 93% |
With bis-triphenylphosphine-palladium(II) chloride In N,N-dimethyl-formamide at 80℃; for 2h; Inert atmosphere; | 70% |
With bis-triphenylphosphine-palladium(II) chloride In toluene at 110℃; | 65% |