Ethyl Acetate → 1430752-06-9

Temperature

0 °C

A solution of EXAMPLE 88A (7.0 g) in diethyl ether (30 mL) was added dropwise to a suspension of LiAlH4 (1.32 g) in diethyl ether (50 mL). Once the addition was finished, the mixture was refluxed for 90 minutes. Then cooled to 0° C. and 2N NaOH (50 mL) was added slowly. Once a semi-solid appeared at the bottom of the flask, ethyl acetate (300 mL) was added and the mixture was stirred vigorously for 30 minutes. The top clear layer was decanted and more ethyl acetate (200 mL) was added to the mixture and stirred for another 15 minutes. The top organic layer was decanted and combined with the previous one. The combined organic layers were washed with 2N aqueous NaOH, water, brine and dried over Na2SO4. Filtration and evaporation of solvent gave the title compound.

1. additionOnce the addition
2. temperaturethe mixture was refluxed for 90 minutes
3. additionwas added
4. customThe top clear layer was decanted
5. additionmore ethyl acetate (200 mL) was added to the mixture
6. stirringstirred for another 15 minutes
7. customThe top organic layer was decanted
8. washThe combined organic layers were washed with 2N aqueous NaOH, water, brine
9. dry with materialdried over Na2SO4
10. filtrationFiltration and evaporation of solvent

ORD record

ord-467c8acaf1eb480c97cf9862f49d076c

Source dataset

uspto-grants-2015_01

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US08940737B2