HuagongsheHuagongshe Chemistry Print Report · For research reference only
2,3-Dichloro-1,1,1-trifluoropropane → 1,1,1,2,2-Pentafluoropropane
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 2,3-Dichloro-1,1,1-trifluoropropane | HCID 9561 | — |
| Reactant | 2-chloro-3,3,3-trifluoroprop-1-ene | HCID 2736716 | — |
| Reactant | 2,3,3,3-Tetrafluoropropene | HCID 2776731 | — |
| Product | 1,1,1,2,2-Pentafluoropropane | HCID 15747 | — |
| Product | 1,3,3,3-Tetrafluoroprop-1-ene | HCID 2776729 | — |
| Product | 1-Chloro-3,3,3-trifluoropropene | HCID 2779022 | — |
Reaction Steps
WO 2008/054781 describes a preparation of HFO-1234yf by reaction of 2,3-dichloro-1,1,1-trifluoropropane (HFC-243db) in the presence of HF over a catalyst, in particular 98/2 Cr/Co. The reaction products comprise HFO-1234yf and 2-chloro-3,3,3-trifluoro-1-propene (HCFO-1233xf), the latter product being predominant; the other products 1-chloro-3,3,3-trifluoro-1-propene (HCFO-1233zd) and also 1,1,1,2,2-pentafluoropropane (HFC-245cb) and 1,3,3,3-tetrafluoro-1-propene (HFO-1234ze) are also formed. A higher temperature favors the production of the 1233zd isomer. The starting material, 2,3-dichloro-1,1,1-trifluoropropane (HFC-243db), is indicated as being obtained by chlorination of trifluoro-1-propene (TFP).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US09187387B2 |
| Source dataset | uspto-grants-2015_11 |
| ORD ID | ord-88f386cfb8694a398eac81bb6c2df894 |
| Source note | uspto-grants-2015_11 |