Pentafluorbenzaldehyd

Bezeichnung:Pentafluorbenzaldehyd

CAS-Nr653-37-2

Englisch Name:Pentafluorobenzaldehyde

CBNumberCB6754598

SummenformelC7HF5O

Molgewicht196.07

MOL-Datei653-37-2.mol

Synonyma

Pentafluorbenzaldehyd

Pentafluorbenzaldehyd physikalisch-chemischer Eigenschaften

Schmelzpunkt	24-28 °C(lit.)
Siedepunkt	164-166 °C(lit.)
Dichte	1.588 g/mL at 25 °C(lit.)
Brechungsindex	n20/D 1.45(lit.)
Flammpunkt	172 °F
storage temp.	Inert atmosphere,2-8°C
Aggregatzustand	Liquid After Melting
Wichte	1.588
Farbe	Clear yellow
Wasserlöslichkeit	Sparingly Soluble in water (0.027 g/L at 25°C).
Sensitive	Air Sensitive
BRN	1876550
InChI	InChI=1S/C7HF5O/c8-3-2(1-13)4(9)6(11)7(12)5(3)10/h1H
InChIKey	QJXCFMJTJYCLFG-UHFFFAOYSA-N
SMILES	C(=O)C1=C(F)C(F)=C(F)C(F)=C1F
CAS Datenbank	653-37-2(CAS DataBase Reference)

Sicherheit

Kennzeichnung gefährlicher	Xn,F,Xi
R-Sätze:	20/22-36/37/38-20
S-Sätze:	26-37/39
RIDADR	UN 2810 6.1/PG 3
WGK Germany	3
RTECS-Nr.	CU7542000
Hazard Note	Irritant
HazardClass	6.1
PackingGroup	III
HS Code	29130000

Gefahreninformationscode (GHS)

Pentafluorobenzaldehyde Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R20/22:Gesundheitsschädlich beim Einatmen und Verschlucken.
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.
S37/39:Bei der Arbeit geeignete Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
Chemische Eigenschaften
Freshly distilled pentafluorobenzaldehyde is a colourless liquid with a strong odour; clear yellowish liquid after melting; a lachrymator; soluble in common organic solvents and practically insoluble in water.
Verwenden
Pentafluorobenzaldehyde was used as derivatization reagent in a study to develop a sensitive method for the determination of primary amines in sewage sludge by headspace solid-phase micro extraction and gas chromatography-tandem mass spectrometry. It was used in the synthesis of novel, high molecular weight fluorinated aromatic polymers.
synthetische
Pentafluorobenzaldehyde is prepared by the reaction ofpentafluorophenylmagnesium bromide, iodide or chloride, or of pentafluorophenyllithium with ethyl-ortho-formiate or 3,4-dihydro-6-methyl-3-(para-tolyl)-quinazoline methiodide. Higher yields of pentafluorobenza1dehyde have been obtained by the reaction with N-methy1formanilide. Pentafluorobenzaldehyde may be prepared also by the reaction of pentafluorobenzonitrile with anhydrous SnClz in ethereal solution of HCl with subsequent hydrolsis of the intermediate (62% yield).
Allgemeine Beschreibung
2,3,4,5,6-Pentafluorobenzaldehyde reacts with 5-(aryl)dipyrromethanes to form a variety of meso-aryl [26]hexaphyrins.
Vorsichtsmaßnahmen
Pentafluorobenzaldehyde is oxidized when exposed to light and air. It should be kept in a tightly stopped dark container. Pentafluorobenzaldehyde is about ten times as toxic as benzaldehyde, therefore it should be handled with caution.

Pentafluorobenzaldehyde Upstream-Materialien And Downstream Produkte

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