4-Aminobenzaldehyd

Bezeichnung:4-Aminobenzaldehyd

CAS-Nr556-18-3

Englisch Name:4-Aminobenzaldehyde

CBNumberCB2281922

SummenformelC7H7NO

Molgewicht121.14

MOL-Datei556-18-3.mol

Synonyma

4-Aminobenzaldehyd

4-Aminobenzaldehyd physikalisch-chemischer Eigenschaften

Schmelzpunkt	77-79°C
Siedepunkt	138-139 C
Dichte	0,868 g/cm
Brechungsindex	1.5323 (estimate)
pka	1.88±0.10(Predicted)
Aggregatzustand	Solid
Farbe	Light yellow to yellow
CAS Datenbank	556-18-3(CAS DataBase Reference)
EPA chemische Informationen	Benzaldehyde, 4-amino- (556-18-3)

Sicherheit

Kennzeichnung gefährlicher	Xi,Xn
R-Sätze:	36/37/38-43-22
S-Sätze:	26-36/37/39-36-36/37
RIDADR	UN 1307
WGK Germany	3
RTECS-Nr.	CU4400000

Gefahreninformationscode (GHS)

4-Aminobenzaldehyde Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
S-Sätze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
Beschreibung
4-Aminobenzaldehyde can be made into polymer with a certain conductivity and corrosion resistance, and the combination of stainless steel is better than the epoxy resin. It can be used as intermediate of pharmaceutical and dye. It is also used in organic synthesis. Additionally, it can react with Carbonyl dichloride to get 4-Formylphenyl isocyanate.
Chemische Eigenschaften
Yellow crystalline powder. Melting point 71-72℃. Soluble in alcohol, benzene, insoluble in water, very easy to polymerize.
Verwenden
4-Aminobenzaldehyde (p-aminobenzaldehyde) is a useful synthetic reagent and monomer that can be used to synthesize monoazo dyes and photocurable ion exchange resins. 4-Aminobenzaldehyde is also a corrosion inhibitor of metals.
synthetische
4-aminobenzaldehyde is obtained from p-nitrotoluene by oxidation, reduction, sodium sulfide, and sodium hydroxide dissolved in water, filtration, and filtrate heated to 68 ° C to add sulfur powder, at 98 ° C reaction for 18min to get more sodium sulfide solution. Add 65% ethanol and p-nitrotoluene, reaction at 80-86 ℃ for 1.5h, recovery of ethanol, and steam distillation to remove by-products p-aminotoluene. The reaction solution is extracted with benzene, distilled by water vapor, cooled, filtered, and dried to obtain the finished product.
Definition
ChEBI: P-aminobenzaldehyde is a member of benzaldehydes.
Synthesis Reference(s)
Organic Syntheses, Coll. Vol. 4, p. 31, 1963
Tetrahedron Letters, 30, p. 251, 1989 DOI: 10.1016/S0040-4039(00)95173-6
Einzelnachweise
[1] O. A. NURKENOV. Synthesis, structure and chemical transformations of 4-aminobenzaldehyde[J]. Russian Journal of General Chemistry, 2013, 83 10: 1864-1868. DOI:10.1134/S1070363213100113.
[2] MD. J. SHARIF Tatsuya T Seiji Yamazoe. Selective Hydrogenation of 4-Nitrobenzaldehyde to 4-Aminobenzaldehyde by Colloidal RhCu Bimetallic Nanoparticles[J]. Topics in Catalysis, 2014, 57 10-13: 1049-1053. DOI:10.1007/s11244-014-0269-5.
[3] KUNIO KIMURA. Self-Assembling Polycondensation of 4-Aminobenzaldehyde. Preparation of Star-Like Aggregates of Cone-Shaped Poly(azomethine) Crystals[J]. Polymer Journal, 2003, 35 5: 455-459. DOI:10.1295/polymj.35.455.
[4] A. HALSTIANYe. Yu V A S Вushuiev. Ozonation of 4-aminotoluene as a new method of synthesis of 4-aminobenzaldehyde – an intermediate for the production of anti-tuberculosis drugs[J]. Current issues in pharmacy and medicine: science and practice, 2022, 18 1. DOI:10.14739/2409-2932.2022.1.249620.
[5] Lei Z U .Preparation and Application of 4-Aminobenzaldehyde and Its Polymer[J].Journal of Yanbian University(Natural Science), 2008.

4-Aminobenzaldehyde Upstream-Materialien And Downstream Produkte

4-Aminobenzaldehyd Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

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