HuagongsheHuagongshe Chemistry Print Report · For research reference only
Tetraethylene Glycol → Heptaethylene glycol
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Tetraethylene Glycol | HCID 8200 | — |
| Reactant | Sodium | HCID 5360545 | — |
| Reactant | 2-(2-(2-Hydroxyethoxy)ethoxy)ethyl benzenesulfonate | HCID 21316325 | — |
| Reactant | Sodium benzene | HCID 66691470 | — |
| Product | Heptaethylene glycol | HCID 79718 | — |
Reaction Steps
Dissolve one equivalet of sodium in at least 5 equivalents of tetraethylene glycol and then add one equivalent of triethylene glycol monobenzenesulfonate. Heat the resulting solution at 100° to 150° C. until the elimination of sodium benzene sulfontate is substantially complete. Remove the insoluble sulfonate salt by filtration and fractionally distill the resultiing product in vacuo to obtain heptaethylene glycol as the higher boiling fraction.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04156683 |
| Source dataset | uspto-grants-1979_05 |
| ORD ID | ord-89a88e341248424db66adbb8ba5c6985 |
| Source note | uspto-grants-1979_05 |