HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hexafluoroacetone → Hexafluoroacetone
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hexafluoroacetone | HCID 12695 | — |
| Reactant | 2-(Trifluoromethyl)-1,1,1,3,3,3-hexafluoropropane | HCID 136226 | — |
| Reactant | Potassium Fluoride | HCID 522689 | — |
| Reactant | CID 19593658 | HCID 19593658 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Solvent | Dimethylacetamide | HCID 31374 | — |
| Product | Hexafluoroacetone | HCID 12695 | — |
| Product | 3,3,3-Trifluoro-2-(trifluoromethyl)-1-propene | HCID 91450 | — |
Reaction Steps
Following the procedure of Example 1, 100 g (0.274 mole) ##STR5## 3.5 g anhydrous KF, 60 g (2.02 mole) trioxane (α-trioxymethylene), 50 mL dimethylformamide and 100 mL dimethylacetamide were heated from 100° C. to 143° C. over a 25 hour period. The cold trap yielded 29.4 g crude product which on GC analysis indicated that 15 g (0.09 mole) was CF3COCF3, 4.4 g (0.027 mole) was (CF3)2C=CH2 and 5.0 g (0.023 mole) was (CF3)3CH. The yields of hexafluoroacetone and hexafluoroisobutylene were 16.4% and 4.9% respectively based on starting hexafluorothioacetone dimer.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04367349 |
| Source dataset | uspto-grants-1983_01 |
| ORD ID | ord-335bd5ce3c674fa09ffea62bbb83e652 |
| Source note | uspto-grants-1983_01 |