2,2',7,7'-Tetrabromo-9,9'-spirobifluorene
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2,2',7,7'-Tetrabromo-9,9'-spirobifluorene
structure -
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CAS No:
128055-74-3
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Formula:
C25H12Br4
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Chemical Name:
2,2',7,7'-Tetrabromo-9,9'-spirobifluorene
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Synonyms:
2,2',7,7'-TETRABROMO-9,9'-SPIROBIFLUORENE;2,2'',7,7''-TETRABROMO-9,9''-SPIRO-BIFLUOROENE;2,2'',7,7''-TETRABROMO-9,9''-SPIROBI[9H-FLUORENE];2,2',7,7'-Tetrabromo-9,9'-spirobiflurene;2,2',7,7'-Tetrabromo;2,2',7,7'-TetrabroMo-9,9'-Spirobifluorene,TetrabroMo-9,9'-Spirobifluorene;9,9'-Spirobi[9H-fluorene], 2,2',7,7'-tetrabroMo-2,2',7,7'-TetrabroMo-9,9'-spirobi[9H-fluorene];TetrabroMo-9,9'-spirobifl
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CAS No:
Description
White to light yellow powder.Pharmaceutical intermediates are also important intermediates for the synthesis of optoelectronic materials
2,2',7,7'-Tetrabromo-9,9'-spirobifluorene Basic Attributes
631.98
683.237366
1312995-182-4
645359
DTXSID90327314
29039990
Characteristics
0
9.1
off-white crystal
2.12±0.1 g/cm3(Predicted)
395-400°C
633.7±55.0 °C(Predicted)
322.5ºC
1.843
2.83E-15mmHg at 25°C
Safety Information
NONH for all modes of transport
3
22-36
26
Xn
P305 + P351 + P338
H302-H319
|Warning|H302 (97.44%): Harmful if swallowed [Warning Acute toxicity, oral]|P264, P270, P280, P301+P312, P305+P351+P338, P330, P337+P313, and P501|Aggregated GHS information provided by 39 companies from 2 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
2,2',7,7'-Tetrabromo-9,9'-spirobifluorene Use and Manufacturing
d 2, 2', 7, 7'-Tetrabromo-9, 9'-spirobifluorene was prepared as follows. 3) Synthesis of a compound 3 The compound 2 (10.6 mmol, 5 g) was dissolved in 150 ml of chloroform and cooled to 0°C, bromine (21.19 mmol, 3.39 g) was slowly dropped thereon, and agitation was conducted for 3 hours. After the reaction, 50 ml of 2 M potassium hydroxide was injected into the reaction vessel to bring about neutralization. The reactants were then washed three times using distilled water. Next, an organic layer was separated and subjected to vacuum distillation, and the resulting solid was recrystallized using a mixed solution of chloroform and ethanol to produce a compound 3 (9.01 mmol, 5.65 g) (Yield 85 percent).
2,2',7,7'-Tetrabromo-9,9'-spirobifluorene is used in the preparation of OLEDs using amorphous compounds with spiro-bifluorene core.
Computed Properties
Molecular Weight:632.0
XLogP3:9.1
Exact Mass:631.76315
Monoisotopic Mass:627.76725
Heavy Atom Count:29
Complexity:527
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
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2,2',7,7'-Tetrabromo-9,9'-spirobifluorene
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