4,4'-(9-Fluorenylidene)dianiline
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4,4'-(9-Fluorenylidene)dianiline
structure -
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CAS No:
15499-84-0
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Formula:
C25H20N2
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Chemical Name:
4,4'-(9-Fluorenylidene)dianiline
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Synonyms:
AKOS BBB/416;9,9'-BIS (4-AMINOPHENYL) FLUORENE;9,9-BIS(4-AMINOPHENYL)FLUORENE;4,4'-(9-FLUORENYLIDENE)DIANILINE;9,9-Bis(4-aMinophenyl)fluorene(BAFL);BenzenaMine,4,4'-(9H-fluoren-9-ylidene)bis-;4,4'-(9-Fluorenylidene)dianiline 99%;9,9-Bis(4-aminophenyl)fluorene(FDA)
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CAS No:
4,4'-(9-Fluorenylidene)dianiline Basic Attributes
348.44
348.162659
1312995-182-4
DTXSID20348173
2921590090
Safety Information
IRRITANT
NONH for all modes of transport
3
20/21/22-36/37
26-36
Xn,Xi
P261-P280-P305 + P351 + P338
H302-H312-H319-H332-H335
|Warning|H302 (97.44%): Harmful if swallowed [Warning Acute toxicity, oral]|P261, P264, P270, P271, P280, P301+P312, P302+P352, P304+P312, P304+P340, P305+P351+P338, P312, P322, P330, P337+P313, P363, P403+P233, P405, 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.
4,4'-(9-Fluorenylidene)dianiline Use and Manufacturing
72 g of 9-fluorenone , 155.4 g of aniline hydrochloride, 10 g of sodium bisulfite, and 72 g of a 9-fluorenone, were added to the reaction apparatus equipped with a water trap.145 g of aniline and 100 g of toluene are heated to 125-130° C. under stirring, and incubated at 125-130° C. for 3 hours, and the generated water passes through. Toluene was brought to the trap. Then, the temperature was raised slowly to 145-150 for 3 hours. After the reaction is over, cool down to 95°C. At this temperature, 10percent sodium hydroxide solution was added dropwise until the pH of the feed solution was approximately , 95° C., and the mixture was neutralized for 3 hours. Thermal stratification was performed at 95° C., the aqueous layer was separated, and the upper oil layer was collected and added to the flask. Under stirring, the temperature was gradually lowered to 20 to 30°C, and the mixture was sufficiently stirred at 20 to 30°C for 1 hour to be sufficiently crystallized. filter, About 185.6g after drying. 185.6 g of 9, 9-bis(4-aminophenyl)fluorene and 300 g of xylene were added to the biscuit, 20 to 30Fully beaten at °C, filter, The product had a wet weight of 170 g, 141 g after drying, and a purity of 99.5percent (HPLC normalized content).Obtained above was 141 g of 9, 9-bis(4-aminophenyl)fluorene, 2800 g of deionized water, 49.3 g of 33percent hydrochloric acid and 28 g ofActivated carbon was added to the flask, and the temperature was raised to 65-70°C to defocus for 2 hours. Heat filtration at 70°C. Add filtrate to burnIn the bottle, add 10percent ammonia water and feed solution at pH 60 to 65°C to pH 9 to 10. Stir at 60-65°C for 3 hours.Make it fully neutralized. After the end of the neutralization, After cooling down to 20 to 30°C, filtering and drying the 130g product, the yield is 93.4percent, the appearance is pure white solid, The purity is 99.7percent.
9,9-bis(4-aminophenyl)fluorene be used for preparation of high-strength material and high-temperature polymers.
Computed Properties
Molecular Weight:348.4
XLogP3:5.3
Hydrogen Bond Donor Count:2
Hydrogen Bond Acceptor Count:2
Rotatable Bond Count:2
Exact Mass:348.162648646
Monoisotopic Mass:348.162648646
Topological Polar Surface Area:52
Heavy Atom Count:27
Complexity:455
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
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4,4'-(9-Fluorenylidene)dianiline
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