HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
1-Chloro-1,1-difluoroethane → 1,1-Difluoro-1,2,2-trichloroethane
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | 1-Chloro-1,1-difluoroethane | HCID 6388 | — |
| Edukt | 2-Chloro-1,1,1-trifluoroethane | HCID 6408 | — |
| Edukt | 2,2-Dichloro-1,1,1-trifluoroethane | HCID 9385 | — |
| Edukt | 1,1,1-Trichloro-2,2,2-trifluoroethane | HCID 9635 | — |
| Edukt | 1,1,1-Trifluoroethane | HCID 9868 | — |
| Edukt | 1,2-Dichloro-1,1-difluoroethane | HCID 15442 | — |
| Produkt | 1,1-Difluoro-1,2,2-trichloroethane | HCID 9630 | — |
| Produkt | 1,2-Dichloro-1,1-difluoroethane | HCID 15442 | — |
Reaktionsschritte
An alternative approach to HCFC's is the chlorination of fluorocarbons such as CH3CF3 (HFC-143a). For example, McBee (Industrial and Engineering Chemistry, Vol. 39, pp. 409-412 (1947)) reported that vapor phase chlorination of HFC-143a afforded a mixture of HCFC-133a, HCFC-132b, CHCl2CF3 (HCFC-123), and the fully chlorinated CF3CCl3 (CFC-113a). McBee also reported the chlorination of CH3CClF2 (HCFC-142b) to give HCFC-132b, HCFC-122, and the fully chlorinated CClF2CCl3 (CFC-112a). Again, using this technique --CH2Cl and --CHCl2 groups dominate the attainable substitution pattern.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US05406008 |
| Quelldatensatz | uspto-grants-1995_04 |
| ORD ID | ord-542bc9eb680148779b9c76cfcfd29658 |
| Quellennotiz | uspto-grants-1995_04 |