1,1-Diphenylethylen

Bezeichnung:1,1-Diphenylethylen

CAS-Nr530-48-3

Englisch Name:1,1-Diphenylethylene

CBNumberCB1853742

SummenformelC14H12

Molgewicht180.25

MOL-Datei530-48-3.mol

Synonyma

1,1-Diphenylethylen

1,1-Diphenylethylen physikalisch-chemischer Eigenschaften

Schmelzpunkt	6 °C (lit.)
Siedepunkt	270-271 °C (lit.)
Dichte	1.021 g/mL at 25 °C (lit.)
Brechungsindex	n20/D 1.608(lit.)
Flammpunkt	221 °F
storage temp.	2-8°C
Aggregatzustand	Liquid
Farbe	Clear colorless to golden
Wasserlöslichkeit	Miscible with methanol, chloroform and ether. Insoluble in water.
Merck	14,3323
BRN	1099062
InChIKey	ZMYIIHDQURVDRB-UHFFFAOYSA-N
CAS Datenbank	530-48-3(CAS DataBase Reference)
NIST chemische Informationen	Ethylene, 1,1-diphenyl-(530-48-3)
EPA chemische Informationen	Benzene, 1,1'-ethenylidenebis- (530-48-3)

Sicherheit

S-Sätze:	23-24/25
RIDADR	UN 3082 9 / PGIII
WGK Germany	3
TSCA	Yes
HS Code	29029090

Gefahreninformationscode (GHS)

1,1-Diphenylethylene Chemische Eigenschaften,Einsatz,Produktion Methoden

S-Sätze Betriebsanweisung:
S23:Gas/Rauch/Dampf/Aerosol nicht einatmen(geeignete Bezeichnung(en) vom Hersteller anzugeben).
S24/25:Berührung mit den Augen und der Haut vermeiden.
Chemische Eigenschaften
Clear colorless to golden liquid
Verwenden
1,1-Diphenylethylene is used in the preparation of 2-chloro-1,1-diphenyl-ethene by reacting with benzeneseleninyl chloride and aluminum(III) chloride as reagents. It acts as an intermediate in organic synthesis as well as in pharmaceuticals.
Synthesis Reference(s)
The Journal of Organic Chemistry, 26, p. 4199, 1961 DOI: 10.1021/jo01069a005
Reaktivität anzeigen
1,1-Diphenylethylene (DPE) is well known for its inability to undergo homopolymerization but can participate in radical copolymerizations. The participation of DPE in radical polymerization leads to the formation of stable DPE radicals by resonance stabilization of the radical by the two phenyl groups and a strong steric hindrance for the addition of any other monomer. Thus, DPE has drastic effects on radical polymerizati[1].
Synthese
1,1-Diphenylethylene can be prepared by the action of alcoholic potassium hydroxide on unsymmetrical diphenylchloroethane; by the action of aluminum chloride on benzene and tribromoethylene; and by dehydration of the carbinol which can be prepared by the action of methylmagnesium iodide on benzophenone, or phenylmagnesium bromide on acetophenone or ethyl acetate.
Einzelnachweise
[1] Sophie Viala . “Structural control in radical polymerization with 1,1-diphenylethylene. 1. Copolymerization of 1,1-diphenylethylene with methyl methacrylate.” Polymer 43 26 (2002): Pages 7231-7241.

1,1-Diphenylethylene Upstream-Materialien And Downstream Produkte

1,1-Diphenylethylen Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

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