Diisobutylaluminumhydride → HCID 86636787, compound

To a stirred solution of 61.1 (0.56 g, 2.24 mmol) in dry THF (20 mL), at −78° C., under a nitrogen atmosphere was added diisobutylaluminum hydride (5 mL, 5 mmol, using a 1M solution in hexanes) dropwise. The reaction mixture was stirred at the same temperature for 30 min and then quenched by dropwise addition of potassium sodium tartrate (10% solution in water). The resulting mixture was warmed to room temperature and stirred vigorously for 1 h. The organic layer was separated and the aqueous phase extracted with diethyl ether. The combined organic layer was washed with brine, dried (MgSO4) and concentrated in vacuo. The residue was purified by column chromatography on silica gel, eluting with 25% diethyl ether-hexane to give 62.1 (0.26 g, 65% yield) as a colorless viscous liquid.

1. customquenched by dropwise addition of potassium sodium tartrate (10% solution in water)
2. stirringstirred vigorously for 1 h
3. customThe organic layer was separated
4. extractionthe aqueous phase extracted with diethyl ether
5. washThe combined organic layer was washed with brine
6. dry with materialdried (MgSO4)
7. concentrationconcentrated in vacuo
8. customThe residue was purified by column chromatography on silica gel
9. washeluting with 25% diethyl ether-hexane

ORD record

ord-fc2f9d9008ed4af4bfb925ea4a1ffd26

Source dataset

uspto-grants-2015_08

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US09102622B2