α-2-Dibromtoluol

Bezeichnung:α-2-Dibromtoluol

CAS-Nr3433-80-5

Englisch Name:2-Bromobenzyl bromide

CBNumberCB8255271

SummenformelC7H6Br2

Molgewicht249.93

MOL-Datei3433-80-5.mol

Synonyma

α-2-Dibromtoluol

α-2-Dibromtoluol physikalisch-chemischer Eigenschaften

Schmelzpunkt	29-32 °C (lit.)
Siedepunkt	129 °C/19 mmHg (lit.)
Dichte	1.8246 (rough estimate)
Brechungsindex	n20/D 1.619(lit.)
Flammpunkt	>230 °F
storage temp.	Inert atmosphere,Room Temperature
Löslichkeit	dioxane: soluble1g/10 mL, clear, colorless
Aggregatzustand	Liquid After Melting
Farbe	Clear colorless to yellow
Wasserlöslichkeit	Insoluble in water.
BRN	971015
InChI	InChI=1S/C7H6Br2/c8-5-6-3-1-2-4-7(6)9/h1-4H,5H2
InChIKey	LZSYGJNFCREHMD-UHFFFAOYSA-N
SMILES	C1(Br)=CC=CC=C1CBr
CAS Datenbank	3433-80-5(CAS DataBase Reference)
NIST chemische Informationen	Benzene, 1-bromo-2-(bromomethyl)-(3433-80-5)
EPA chemische Informationen	2-Bromobenzyl bromide (3433-80-5)

Sicherheit

Kennzeichnung gefährlicher	C,T
R-Sätze:	34-37-23
S-Sätze:	26-36/37/39-45-22
RIDADR	UN 3261 8/PG 3
WGK Germany	3
F	8-19
TSCA	TSCA listed
HazardClass	8
PackingGroup	III
HS Code	29036990
Speicherklasse	8A - Combustible corrosive hazardous materials
Hazard Classifications	Eye Dam. 1 Skin Corr. 1B

Gefahreninformationscode (GHS)

2-Bromobenzyl bromide Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R34:Verursacht Verätzungen.
R37:Reizt die Atmungsorgane.
R23:Giftig beim Einatmen.
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.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).
S22:Staub nicht einatmen.
Chemische Eigenschaften
clear colorless to yellowish liquid after melting
Verwenden
2-Bromobenzyl bromide was used in the synthesis of:
- substituted quinazolines and 1,2,3,4-tetrahydroquinazolines
- 2- and 3-substituted indenes
- tris-2-bromotribenzylamine
Verwenden
2-Bromobenzyl bromide was used in the synthesis of substituted quinazolines and 1,2,3,4-tetrahydroquinazolines, 2- and 3-substituted indenes, tris-2-bromotribenzylamine3.
Synthese
In the reaction flask, 15g of toluene was added to 100mL of glacial acetic acid, and then 3g of iron powder was added to the localization catalyst, and 8mL of bromine was slowly added dropwise under the condition of room temperature for about 30min, and then the reaction was carried out at 40 for 5h, and then put into a tungsten lamp at 300W for 5h, and then the reaction was completely monitored by TLC, and the solvent glacial acetic acid was evaporated under vacuum, and a certain amount of concentrate was added to it. A certain amount of sodium hydroxide solution with a mass concentration of 20% was added to the concentrate, the reaction solution was filtered, the filtrate was extracted with dichloromethane for three times, and the organic phases were combined, and the organic phase was then dried with anhydrous sodium sulfate and concentrated to obtain 24g of o-bromobenzyl bromide; 1HNMR (400MHz, CDCl3) : 7.51 (d, J=12.0Hz, 1H), 7.27-7.23 (m, 3H), 4.37 (s). ,2H).

2-Bromobenzyl bromide Upstream-Materialien And Downstream Produkte

α-2-Dibromtoluol Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

3433-80-5, 2-Bromobenzyl bromide Verwandte Suche:

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