Acetonitrile → 3-(3-((4,4-Difluorocyclohexyl)methoxy)phenyl)-3-hydroxypropanenitrile

HRID 74428Notes

Reaction equation

CC(C)([O-])C.[K+].[C:7](#[N:9])[CH3:8].[F:10][C:11]1([F:27])[CH2:16][CH2:15][CH:14]([CH2:17][O:18][C:19]2[CH:20]=[C:21]([CH:24]=[CH:25][CH:26]=2)[CH:22]=[O:23])[CH2:13][CH2:12]1.[NH4+].[Cl-]>C1COCC1.CCOC(C)=O>[F:10][C:11]1([F:27])[CH2:16][CH2:15][CH:14]([CH2:17][O:18][C:19]2[CH:20]=[C:21]([CH:22]([OH:23])[CH2:8][C:7]#[N:9])[CH:24]=[CH:25][CH:26]=2)[CH2:13][CH2:12]1

Participants

Conditions

Temperature: 0 °C

Procedure

Potassium t-butoxide (2.59 mmole, 2.6 ml of a 1.0M solution in THF) was cooled to −50° C. Acetonitrile (0.106 g, 2.59 mmole) was slowly added and stirred for 15 min. Benzaldehyde 143 (0.55 g, 2.16 mmole) in THF (1.0 ml) was added and the reaction was allowed to warm to 0° C. over 30 min. Sat. NH4Cl (20 ml) and EtOAc (30 ml) was added and stirred for 10 min. The organic layer was dried over Na2SO4 and evaporated giving 3-(3-((4,4-difluorocyclohexyl)methoxy)phenyl)-3-hydroxypropanenitrile (144) as an oil. Yield (0.622 g, 97%): 1H NMR (400 MHz, DMSO-d6) δ 7.22 (t, J=7.8 Hz, 1H), 6.96-6.93 (m, 2H), 6.82 (ddd, J=8.2, 2.6, 0.8 Hz, 1H), 5.89 (d, J=4.8 Hz, 2H), 4.85-4.81 (m, 1H), 2.86 (ABd, J=16.4, 5.0 Hz, 1H), 2.77 (ABd, J=16.8, 6.8 Hz, 1H), 2.04-1.96 (m, 2H), 1.88-1.73 (m, 5H), 1.35-1.25 (m, 2H).

Workup

stirringstirred for 10 min
dry with materialThe organic layer was dried over Na2SO4
customevaporated

Sources & evidence

ORD record: ord-ce72cd171798477ba39c4182de463845
Source dataset: uspto-grants-2014_09
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08829244B2

Reaction notes

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