Tetrahydrofurfuryl alcohol → HCID 68826039, compound

Into a cooled (0° C.) solution of 1.92 g (8.58 mmol) of diethylphosphonoacetic acid ethyl ester in tetrahydrofuran-methanol (3.5 mL+2.8 mL) was dropped 1.65 mL (8.58 mmol) of 28% sodium methoxide in methanol solution, and stirred for 10 minutes. Into this solution was dropped a solution of 1.0 g (7.80 mmol) of 4-methyltetrahydropyran-4-carbaldeyhde obtained in the above 2) in tetrahydrofuran (1.5 mL), and then stirred for 5 hours at room temperature. After the reaction was completed, the reaction mixture was poured into ice water and extracted with ether. The organic layer was washed with water (three times) and saturated brine successively, dried over anhydrous magnesium sulfate and concentrated under a reduced pressure. The obtained residue was purified by medium pressure liquid column chromatography on silica gel (developing solvent; hexane-ethyl acetate) to obtain 0.93 g (yield 64.7%) of 3-(4-methyltetrahydropyran-4-yl)acrylic acid methyl ester as colorless liquid. Its physical property is shown below.

1. stirringstirred for 5 hours at room temperature
2. extractionextracted with ether
3. washThe organic layer was washed with water (three times) and saturated brine successively
4. dry with materialdried over anhydrous magnesium sulfate
5. concentrationconcentrated under a reduced pressure
6. customThe obtained residue was purified by medium pressure liquid column chromatography on silica gel (developing solvent; hexane-ethyl acetate)

ORD record

ord-2d4e138396074abea79a0ccf8f7482a4

Source dataset

uspto-grants-2009_03

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US07511144B2