4,4'-Dichlorbenzophenon

Bezeichnung:4,4'-Dichlorbenzophenon

CAS-Nr90-98-2

Englisch Name:4,4'-Dichlorobenzophenone

CBNumberCB2120403

SummenformelC13H8Cl2O

Molgewicht251.11

MOL-Datei90-98-2.mol

Synonyma

4,4'-Dichlorbenzophenon

4,4'-Dichlorbenzophenon physikalisch-chemischer Eigenschaften

Schmelzpunkt	144-146 °C (lit.)
Siedepunkt	353 °C (lit.)
Dichte	1,45 g/cm³
Brechungsindex	1.5555 (estimate)
Flammpunkt	352-354°C
storage temp.	Sealed in dry,Room Temperature
Löslichkeit	Soluble in hot acetone.
Aggregatzustand	powder to crystal
Farbe	White to Light yellow
BRN	643345
Stabilität	Stable. Incompatible with strong oxidizing agents.
CAS Datenbank	90-98-2(CAS DataBase Reference)
NIST chemische Informationen	p-Dichlorobenzophenone(90-98-2)
EPA chemische Informationen	Methanone, bis(4-chlorophenyl)- (90-98-2)

Sicherheit

Kennzeichnung gefährlicher	Xi
R-Sätze:	36/37/38
S-Sätze:	22-24/25-36-26
WGK Germany	3
RTECS-Nr.	DJ0525000
Hazard Note	Irritant
TSCA	Yes
HS Code	29147000

Gefahreninformationscode (GHS)

4,4'-Dichlorobenzophenone Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
S-Sätze Betriebsanweisung:
S22:Staub nicht einatmen.
S24/25:Berührung mit den Augen und der Haut vermeiden.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
Chemische Eigenschaften
faintly yellow crystalline powder
Verwenden
4,4'-Dichlorobenzophenone is used as pharmaceutical intermediates. It is an important raw material and intermediate used in Organic Synthesis, Pharmaceuticals, Agrochemicals and dyestuffs. Bisaminonitrile was polymerized with 4,4'-dichlorobenzophenone using NaH as base.
synthetische
4,4'-Dichlorobenzophenone is prepared by the acylation of chlorobenzene with 4-chlorobenzoyl chloride. The conversion is typically conducted in the presence of an aluminium chloride catalyst in a petroleum ether solvent.
ClC6H5C(O)Cl + C6H5Cl → (ClC6H4)2CO + HCl
Definition
ChEBI: 4-4-Dichlorobenzophenone is a member of benzophenones.
Application
4,4'-Dichlorobenzophenone can be used to synthesize polyether-polyketones, as well as reduce polymer costs. Furthermore, it is a metabolic product resulting from the degredation of DDT.
Synthesis Reference(s)
The Journal of Organic Chemistry, 54, p. 1201, 1989 DOI: 10.1021/jo00266a039
Tetrahedron Letters, 36, p. 8411, 1995 DOI: 10.1016/0040-4039(95)01802-O
Allgemeine Beschreibung
4,4′-Dichlorobenzophenone (DBP) is a metabolite obtained when one strain of ectomycorrhizal fungi, Xerocomus chrysenteron, degrades 1,1,1-trichloro-2,2-bis(4-chlorophe-nyl) ethane (DDT).
läuterung methode
Recrystallise it from EtOH [Wagner et al. J Am Chem Soc 108 7727 1986]. The semicarbazone has m 192-193o (from H2O). [Beilstein 7 H 420, 7 I 228, 7 II 359, 7 III 2076, 7 IV 1376.]
Einzelnachweise
[1] C. VENKATESAN. Liquid Phase Selective Benzoylation of Chlorobenzene to 4,4′-Dichlorobenzophenone over Zeolite H-Beta[J]. Catalysis Letters, 2001, 75 1-2: 119-123. DOI:10.1023/A:1016771719956.
[2] K. YONEYAMA F. M. Reductive metabolism of heptachlor, parathion, 4,4′-dichlorobenzophenone, and carbophenothion by rat liver systems[J]. Pesticide Biochemistry and Physiology, 1981, 15 3: Pages 213-221. DOI:10.1016/0048-3575(81)90003-1.
[3] YI HUANG Jie W. Degradation and mineralization of DDT by the ectomycorrhizal fungi, Xerocomus chrysenteron[J]. Chemosphere, 2013, 92 7: Pages 760-764. DOI:10.1016/j.chemosphere.2013.04.002.
[4] HONGXIN ZHOU. Synthesis and characterization of phthalazinone‐based poly(aryl ether ketone) derived from 4,4′‐dichlorobenzophenone[J]. Polymers for Advanced Technologies, 2012, 23 1: 742-747. DOI:10.1002/PAT.1950.

4,4'-Dichlorobenzophenone Upstream-Materialien And Downstream Produkte

4,4'-Dichlorbenzophenon Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

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