Methanol → HCID 86733540, Verbindung

Temperatur

-78 °C

A mixture of 3.60 g. (26 mm.) of 1-isopropoxy-1,4-cyclohexadiene and 100 ml. of absolute methanol was treated with ozone (1.25 g., 26 mm.) at -78°C. The resulting mixture was flushed with nitrogen. The mixture was allowed to come to 0°C. and 2.42 g. (39 mm.) of dimethyl sulfide were added and the mixture stirred at this temperature for 80 minutes. After cooling to -78°C, a suspension of 1.47 g. (39 mm.) of sodium borohydride in 20 ml. of absolute ethanol was added dropwise. The resulting mixture was allowed to come up to room temperature and then stirred for 80 minutes. The methanol was removed under vacuum to produce 3.54 g. of product (80% of theory), b.p. 72° (0.2 mm., short path distillation).

1. additionA mixture of 3.60 g
2. customThe resulting mixture was flushed with nitrogen
3. customto come to 0°C.
4. addition(39 mm.) of dimethyl sulfide were added
5. additiona suspension of 1.47 g
6. additionof absolute ethanol was added dropwise
7. customto come up to room temperature
8. stirringstirred for 80 minutes
9. customThe methanol was removed under vacuum
10. customto produce 3.54 g
11. distillationof product (80% of theory), b.p. 72° (0.2 mm., short path distillation)

ORD-Eintrag

ord-ee3df6f592c3459e99df76c65a7a7a35

Quelldatensatz

uspto-grants-1976_06

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US03962354