beta-Bromstyrol (Gemisch aus cis-und trans-Isomeren)

Bezeichnung:beta-Bromstyrol (Gemisch aus cis-und trans-Isomeren)

CAS-Nr103-64-0

Englisch Name:beta-Bromostyrene

CBNumberCB5119040

SummenformelC8H7Br

Molgewicht183.05

MOL-Datei103-64-0.mol

Synonyma

β-Bromstyrol

beta-Bromstyrol (Gemisch aus cis-und trans-Isomeren)

beta-Bromstyrol (Gemisch aus cis-und trans-Isomeren) physikalisch-chemischer Eigenschaften

Schmelzpunkt	7 °C(lit.)
Siedepunkt	219-221 °C(lit.)
Dichte	1.427 g/mL at 25 °C(lit.)
Dampfdruck	16.4Pa at 25℃
Brechungsindex	n20/D 1.608
Flammpunkt	215 °F
storage temp.	2-8°C
Löslichkeit	Soluble in alcohol.
Aggregatzustand	Liquid
Farbe	very deep green-yellow
Geruch (Odor)	at 1.00 % in dipropylene glycol. strong leafy green hyacinth
Geruchsart	green
Wasserlöslichkeit	56.624mg/L at 25℃
BRN	2038495
LogP	3.391 at 25℃
CAS Datenbank	103-64-0(CAS DataBase Reference)
NIST chemische Informationen	Benzene, (2-bromoethenyl)-(103-64-0)
EPA chemische Informationen	.beta.-Bromostyrene (103-64-0)

Sicherheit

Kennzeichnung gefährlicher	Xn
R-Sätze:	22
S-Sätze:	23-24/25-36/37
WGK Germany	3
RTECS-Nr.	WL3850000
TSCA	Yes
HS Code	29039990
Giftige Stoffe Daten	103-64-0(Hazardous Substances Data)
Toxizität	An acute oral LD₅₀ in rats was reported as 1.25 ml/kg(0.82-189 ml/kg). The acute dermal LD₅₀ was reported as > 6 ml/kg in the rabbit

Gefahreninformationscode (GHS)

beta-Bromostyrene Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R22:Gesundheitsschädlich beim Verschlucken.
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.
S36/37:Bei der Arbeit geeignete Schutzhandschuhe und Schutzkleidung tragen.
Chemische Eigenschaften
CLEAR YELLOWISH TO BROWN LIQUID
Occurrence
Apparently has not been reported to occur in nature.
Verwenden
Perfumery.
Verwenden
Beta-Bromostyrene, cis + trans is an important raw material and intermediate used in organic Synthesis, pharmaceuticals, agrochemicals and dyestuff.
Verwenden
β-Bromostyrene was used in the one-pot method for the preparation of cinnamonitriles. It was also used in the preparation of pure ethyl Z- and E-α,α-difluoro-4-phenyl-3-butenoate and 1,3-diphenyl-1-butene. It may be used in the synthesis of β-tert-butylstyrene via cross coupling reaction with tert-butylmagnesium chloride in the presence of dichloro[1,1′-bis(diphenylphosphino)ferrocene]nickel(II) catalyst. It may also be used to prepare γ-but-2-enolactone by reacting with nickel carbonyl in the presence of alkynes.
synthetische
By the action of aqueous alkali on cinnamic acid dibromide.
Allgemeine Beschreibung
β-Bromostyrene is an α,β-unsaturated aromatic halide. It can be synthesized by catalytic Hunsdiecker reaction (CHR) of cinnamic acid. It is commonly utilized as a precursor for preparing substituted alkenes, corresponding acetylenes and also in the total synthesis of natural compounds and antibiotics.
Flammability and Explosibility
Not classified

beta-Bromostyrene Upstream-Materialien And Downstream Produkte

beta-Bromstyrol (Gemisch aus cis-und trans-Isomeren) Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

103-64-0, beta-Bromostyrene Verwandte Suche:

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