HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
Bisphenol A → 4,4'-(1-Methylethylidene)bis(cyclohexanone)
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | Bisphenol A | HCID 6623 | — |
| Edukt | Hydrogenated bisphenol a | HCID 94932 | — |
| Produkt | 4,4'-(1-Methylethylidene)bis(cyclohexanone) | HCID 81914 | — |
Reaktionsschritte
The process described in Japanese Patent Laid-Open Publication No. 59742/1992, however, has a problem of using expensive alicyclic diol. If 2,2-bis(4-hydroxyphenyl)propane that is relatively inexpensive is used as a starting material, reactions of two steps, namely, hydrogenation reaction of 2,2-bis(4-hydroxyphenyl)propane and oxidation reaction of 2,2-bis(4-hydroxycyclohexyl)propane obtained by the hydrogenation reaction, must be conducted to produce 2,2-bis(4-oxocyclohexyl)propane, so that the process becomes complicated.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US06313351B1 |
| Quelldatensatz | uspto-grants-2001_11 |
| ORD ID | ord-b6d650a3101e480d907c604d78eda94a |
| Quellennotiz | uspto-grants-2001_11 |