Reacción #8660

Ecuación de reacción

water

1-(2,6,6-trimethyl-3-cyclohexen-1-yl)-2-ethanone

acetaldehyde

acetic acid

→

1-(2,6,6-trimethyl-3-cyclohexen-1-yl)-2-buten-1-one

Disolventes

butyl acetate

butyl acetate

Condiciones de reacción

Tratamiento posterior

1. 1
   Otroas prepared above and a quantity
2. 2
   workup.ADDITIONwere introduced under the surface of the liquid, over 3 hours
3. 3
   TemperaturaAfter the completion of the introduction the reaction was cooled to 35° C
4. 4
   OtroTo the cooled reaction medium
5. 5
   workup.STIRRINGAfter stirring a few minutes
6. 6
   Otrothe water phase was removed
7. 7
   Lavadoby washing it with 25 g of 20% aqueous potassium carbonate

Procedimiento

In a 250 ml flask were added 30 g (0.18 mole) of 1-(2,6,6-trimethyl-3-cyclohexen-1-yl)-2-ethanone (94% purity), 12.0 g of butyl acetate, an aliquot according to Table 1 of the catalytic solution as prepared above and a quantity of co-ingredient according to Table 1. The resulting mixture was stirred at 100° C. To said mixture, 4.0 g (0.09 mole) of acetaldehyde, diluted in 10 g of butyl acetate were introduced under the surface of the liquid, over 3 hours. After the completion of the introduction the reaction was cooled to 35° C. To the cooled reaction medium were added 10 g of acetic acid and then 40 ml of water. After stirring a few minutes, the water phase was removed and the organic phase was neutralized by washing it with 25 g of 20% aqueous potassium carbonate.

Fuente