Ethanol → Ethyl 6'-bromo-1'-(1,1-dimethylethylsulfinamido)-4-methoxy-1',3'-dihydrospiro[cyclohexane-1,2'-indene]-1'-carboxylate

HRID 473027Notes

Reaction equation

[Br:1][C:2]1[CH:10]=[C:9]2[C:5]([CH2:6][C:7]3([CH2:27][CH2:26][CH:25]([O:28][CH3:29])[CH2:24][CH2:23]3)[C:8]2([NH:16][S:17]([C:19]([CH3:22])([CH3:21])[CH3:20])=[O:18])[C:11]([O:13][CH2:14][CH3:15])=C)=[CH:4][CH:3]=1.[C-]#N.[K+].CC[OH:35]>O>[Br:1][C:2]1[CH:10]=[C:9]2[C:5]([CH2:6][C:7]3([CH2:27][CH2:26][CH:25]([O:28][CH3:29])[CH2:24][CH2:23]3)[C:8]2([NH:16][S:17]([C:19]([CH3:21])([CH3:22])[CH3:20])=[O:18])[C:11]([O:13][CH2:14][CH3:15])=[O:35])=[CH:4][CH:3]=1

Participants

Conditions

Temperature: 80 °C

Procedure

A steel clabe was charged with a mixture of compound 5 (400 mg, 1.39 mmol), KCN (362 mg, 5.57 mmol) in EtOH (4 mL) and H2O (4 mL). The mixture was heated at 80° C. for 24 h. The reaction mixture was cooled to room temperature and poured into ice (10 g) and filtered. The filter cake was washed with water (10 mL×2) and CH2Cl2 (10 mL×2), dried under reduced pressure to give compound 6 (440 mg, 78%) as a white solid. LC-MS tR=1.219 min in 2 min chromatography, MS (ESI) m/z 333, 335 [M+H]+; 1H NMR (DMSO 400 MHz): δ 10.82 (m, 1H), 8.52 (d, J=27.2 Hz, 1H), 7.53 (m, 1H), 7.34 (m, 2H), 5.78 (d, J=6.4 Hz, 2H), 2.61 (m, 4H), 2.23 (m, 2H).

Workup

temperatureThe reaction mixture was cooled to room temperature
filtrationfiltered
washThe filter cake was washed with water (10 mL×2) and CH2Cl2 (10 mL×2)
customdried under reduced pressure

Sources & evidence

ORD record: ord-d04629ed4d324c9fa90ab6f89c1e5de3
Source dataset: uspto-grants-2014_01
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08633212B2

Reaction notes

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