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CAS No.: | 821-10-3 |
---|---|
Name: | 1,4-Dichloro-2-butyne |
Article Data: | 31 |
Molecular Structure: | |
Formula: | C4H4Cl2 |
Molecular Weight: | 122.982 |
Synonyms: | 2-Butyne, 1,4-dichloro-;1,4-Dichlorobutyne;4-01-00-00973 (Beilstein Handbook Reference);1,4-Dichlorobut-2-yne; |
EINECS: | 212-474-8 |
Density: | 1.222 g/cm3 |
Melting Point: | -34.5ºC |
Boiling Point: | 165.5 °C at 760 mmHg |
Flash Point: | 70.7 °C |
Appearance: | Clear brown liquid. |
Hazard Symbols: | Xi,T |
Risk Codes: | 36/37/38-40-23/24/25 |
Safety: | 26-36-45-38-36/37/39-28A |
Transport Information: | UN 2810 |
PSA: | 0.00000 |
LogP: | 1.46740 |
Conditions | Yield |
---|---|
With pyridine; thionyl chloride | 84% |
With thionyl chloride In pyridine | 82% |
With pyridine; thionyl chloride at 0 - 20℃; for 2h; | 56% |
but-2-yne-1,4-bisoxycarbonylchloride
1,4-Dichloro-2-butyne
Conditions | Yield |
---|---|
With N,N-dimethyl-formamide In 1,2-dichloro-ethane at 80℃; | 76% |
Conditions | Yield |
---|---|
With thionyl chloride; triethylamine In dichloromethane at 10 - 20℃; | A 54% B 18% |
With pyridine; thionyl chloride In benzene at 10 - 20℃; for 6h; | A 49% B 24% |
With pyridine; thionyl chloride In benzene at 0 - 20℃; | A 40% B 17% |
With pyridine; thionyl chloride In benzene at 0 - 20℃; | A 35% B n/a |
With pyridine; thionyl chloride In benzene 1) 10 - 20 deg C, 7 h, 2) overnight; | A 26% B 30% |
pyridine
1,4-dihydroxybut-2-yne
thionyl chloride
1,4-Dichloro-2-butyne
Conditions | Yield |
---|---|
at 10 - 20℃; |
1,4-dihydroxybut-2-yne
phosphorus pentachloride
benzene
1,4-Dichloro-2-butyne
Conditions | Yield |
---|---|
at 80℃; |
1,4-dihydroxybut-2-yne
hydrogenchloride
acetic acid
A
(Z)-2,4-dichloro-but-2-en-1-ol
B
3,4-dichloro-but-2-en-1-ol
C
1,4-Dichloro-2-butyne
Conditions | Yield |
---|---|
at 100 - 110℃; |
Conditions | Yield |
---|---|
With dihydrogen hexachloroplatinate In tetrahydrofuran at 85℃; for 4h; | 100% |
With platinum(IV) oxide In toluene at 100℃; for 24h; diastereoselective reaction; | 75% |
dihydrogen hexachloroplatinate | |
With dihydrogen hexachloroplatinate at 170℃; for 1h; |
Phenylselenyl chloride
1,4-Dichloro-2-butyne
(E)-2-(Phenylseleno)-1,3,4-trichlorobut-2-ene
Conditions | Yield |
---|---|
In acetonitrile at 25℃; for 20h; | 100% |
1,4-Dichloro-2-butyne
Conditions | Yield |
---|---|
With copper dichloride; palladium dichloride In butan-1-ol; benzene at 25℃; for 24h; | 100% |
With copper dichloride; palladium dichloride In methanol; carbon dioxide at 40℃; under 120012 Torr; for 8h; | 98% |
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1. | ivn-mus LD50:56 mg/kg | CSLNX* U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. (Aberdeen Proving Ground, MD 21010) NX#02969 . |