Potassium Sodium Tartrate → HCID 118343076, compound

To a solution of (R)-3,3-diallyl-5-(hydroxymethyl)pyrrolidin-2-one (0.43 g, 2.202 mmol) in THF (5.51 ml) cooled to 0° C., lithium aluminum hydride, 1.0 M solution in THF (2.86 ml, 2.86 mmol) was added. The mixture was stirred at room temperature overnight. Extra lithium aluminum hydride, 1.0 M solution in THF (2.86 ml, 2.86 mmol) was added and it was refluxed for 6 h. More lithium aluminum hydride, 1.0 M solution in THF (2.86 ml, 2.86 mmol) was added and the mixture was refluxed overnight. The reaction mixture was cooled to 0° C. prior to addition of aq. Rochelle's salt into the mixture slowly. The resulting slurry solution was extracted with EtOAc (10 mL). The combined extracts were washed with brine, dried and concentrated to afford (R)-(4,4-diallylpyrrolidin-2-yl)methanol (0.34 g, 1.876 mmol, 85% yield) as colorless oil. 1H NMR (400 MHz, CDCl3) δ 5.72-5.88 (m, 2H), 5.00-5.17 (m, 4H), 3.49-3.59 (m, 1H), 3.30-3.46 (m, 2H), 2.79 (d, J=11.30 Hz, 1H), 2.67 (d, J=11.35 Hz, 1H), 2.08-2.19 (m, 4H), 1.72 (dd, J=6.97, 13.04 Hz, 1H), 1.22-1.39 (m, 1H).

1. temperatureit was refluxed for 6 h
2. temperaturethe mixture was refluxed overnight
3. temperatureThe reaction mixture was cooled to 0° C.
4. extractionThe resulting slurry solution was extracted with EtOAc (10 mL)
5. washThe combined extracts were washed with brine
6. customdried
7. concentrationconcentrated

ORD record

ord-a211e1cc812844c0817e6e879821d968

Source dataset

uspto-grants-2016_06

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US09365522B2