HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
1-Bromo-3-methylbutane → 15-Methylhexadecyl bromide
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | 1-Bromo-3-methylbutane | HCID 7891 | — |
| Edukt | 1,12-Dibromododecane | HCID 18766 | — |
| Edukt | Magnesium | HCID 5462224 | — |
| Katalysator | Copper;dilithium;tetrachloride | HCID 193501 | — |
| Lösungsmittel | Tetrahydrofuran | HCID 8028 | — |
| Produkt | 15-Methylhexadecyl bromide | HCID 20437385 | — |
| Produkt | HCID 178418529 | HCID 178418529 | — |
Reaktionsschritte
A solution of 3-methylbutylmagnesium bromide is prepared by treating 15 g. (0.1 mole) 3-methylbutyl bromide with 2.7 g. (1.1 eq) magnesium turnings in 50 ml. dry tetrahydrofuran. The resultant Grignard reagent is dropwise added to a cold (-10° C.) solution of 36.1 g. (1.1 eq) 1,12-dibromododecane and 0.2 g. (1 m mole) dilithiumtetrachloro cuprate in 75 ml. dry tetrahydrofuran. The solution is stirred for one hour, evaporated, and fractionally distilled in vacuo to yield 15-methylhexadecylbromide as a colorless liquid.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US04254138 |
| Quelldatensatz | uspto-grants-1981_03 |
| ORD ID | ord-4b450992ea5c48be9f42825b1c6d7949 |
| Quellennotiz | uspto-grants-1981_03 |