2,4-Dinitrobenzolsulfenylchlorid

Bezeichnung:2,4-Dinitrobenzolsulfenylchlorid

CAS-Nr528-76-7

Englisch Name:2,4-DINITROBENZENESULFENYL CHLORIDE

CBNumberCB8349604

SummenformelC6H3ClN2O4S

Molgewicht234.62

MOL-Datei528-76-7.mol

Synonyma

2,4-Dinitrobenzolsulfenylchlorid

2,4-Dinitrobenzolsulfenylchlorid physikalisch-chemischer Eigenschaften

Schmelzpunkt	94-97 °C(lit.)
Siedepunkt	430.1±35.0 °C(Predicted)
Dichte	1.700 (estimate)
Brechungsindex	1.6000 (estimate)
storage temp.	2-8°C
Löslichkeit	benzene: soluble
Aggregatzustand	solid
Farbe	Light orange to Yellow to Green
Merck	14,3274
BRN	405600
CAS Datenbank	528-76-7(CAS DataBase Reference)
EPA chemische Informationen	Benzenesulfenyl chloride, 2,4-dinitro- (528-76-7)

Sicherheit

Kennzeichnung gefährlicher	C
R-Sätze:	34-37
S-Sätze:	26-36/37/39-45
RIDADR	UN 3261 8/PG 2
WGK Germany	3
F	8-9-19-21
HS Code	2930.90.2900
HazardClass	8
PackingGroup	III

Gefahreninformationscode (GHS)

2,4-DINITROBENZENESULFENYL CHLORIDE Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R34:Verursacht Verätzungen.
R37:Reizt die Atmungsorgane.
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).
Verwenden
2,4-Dinitrobenzenesulfenyl chloride was used in preparation of chlorine and bromine biphenyls.
synthetische
CAUTION: This reaction should be carried out in a hood behind a safety shield. The product decomposes explosively if heated above 90-100°C .
To a 500-ml, three-necked flask equipped with a mechanical stirrer, distillation column, and distillation head is added 100 gm (0.25 mole) of dry 2,4-dinitrophenyl disulfide and 250 ml of ethylene chloride. The contents are heated with an oil bath at 125°C until 30-40 ml of the solvent is collected by distillation. The contents are cooled and the distillation head replaced by a gas inlet and exit tube connected to an alkali trap. Then 0.15 gm (0.002 mole) of Merck "Iron by Hydrogen" powder is added as a catalyst [51a-c], and dry chlorine gas is slowly bubbled into the reaction. In a few minutes, the reaction warms up, and the flask is surrounded with a 20°C water bath. The chlorine gas is bubbled in at such a rate that 18 gm (0.25 mole) is added over a 1-1½-hr period. After this time, the suspended disulfide should gradually disappear, and a clear, amber-red solution results. The flow of chlorine gas is stopped, the solution stirred for 1 hr, filtered through diatomaceous earth, the filtrate aspirated to remove excess chlorine, and then 400 ml of anhydrous ether is added. Within ½ hr, most of the product crystallizes by cooling the flask in an ice-salt-water bath for 3-4 hr. The product is filtered, washed with 100 ml of cold ether, and then dried to afford 70 gm (60%) of brilliant yellow needles, m.p. 95-95.5°C.
Synthesis Reference(s)
Journal of the American Chemical Society, 72, p. 1796, 1950 DOI: 10.1021/ja01160a108
Allgemeine Beschreibung
2,4-Dinitrobenzenesulfenyl chloride undergoes addition reactions with transannularly substituted cycloalkenes and norbornenes. 2,4-Dinitrobenzenesulfenyl chloride can convert allylic alcohols to dienes by 1,4-elimination.
läuterung methode
Crystallise the sulfenyl chloride from CCl4. [Beilstein 6 II 316.]

2,4-Dinitrobenzolsulfenylchlorid Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

528-76-7, 2,4-DINITROBENZENESULFENYL CHLORIDE Verwandte Suche:

Send Inquriy