HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
Benzene → 2,2-Bis-chloromethyl-5,5-dimethyl-1,3-dioxolane
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | Benzene | HCID 241 | — |
| Edukt | 1,3-Dichloroacetone | HCID 10793 | — |
| Edukt | Neopentyl glycol | HCID 31344 | — |
| Edukt | Sodium Bicarbonate | HCID 516892 | — |
| Katalysator | p-Toluenesulfonic acid | HCID 6101 | — |
| Lösungsmittel | Water | HCID 962 | — |
| Produkt | 2,2-Bis-chloromethyl-5,5-dimethyl-1,3-dioxolane | HCID 68585438 | 34,6% |
Reaktionsschritte
This compound was synthesized by substantially following the procedure of the above-mentioned article by Isaka, Ejiri, and Nakamura. 69 grams of neopentyl glycol, 76 grams of 1,3-dichloroacetone, 50 ml of benzene, and 2.3 g of p-toluenesulfonic acid were refluxed through a Dean-Stark water separator for 8 hours whereon the reaction was diluted with hexanes and neutralized with aqueous sodium bicarbonate. The organic layer was dried over anhydrous magnesium sulfate and concentrated in vacuo yielding 41.2 g of 2,2-bis-chloromethyl-5,5-dimethyl-1,3-dioxolane, a pale yellow liquid.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US07741245B2 |
| Quelldatensatz | uspto-grants-2010_06 |
| ORD ID | ord-bd67b92e946446cd96d7efddfc3592d5 |
| Quellennotiz | uspto-grants-2010_06 |