Diethyl (ethoxymethylene)malonate → Diethyl [2,3,4-trifluoro[(1S)-2-hydroxy-1-methylethyl]anilino]methylenemalonate

HRID 8470

Reaction equation

CC(C)([O-])C.[K+].[F:7][C:8]1[C:18]([F:19])=[C:17]([F:20])[CH:16]=[CH:15][C:9]=1[NH:10][C@@H:11]([CH3:14])[CH2:12][OH:13].C(O[CH:24]=[C:25]([C:31]([O:33][CH2:34][CH3:35])=[O:32])[C:26]([O:28][CH2:29][CH3:30])=[O:27])C>CN(C=O)C>[F:7][C:8]1[C:18]([F:19])=[C:17]([F:20])[CH:16]=[CH:15][C:9]=1[N:10]([CH:24]=[C:25]([C:26]([O:28][CH2:29][CH3:30])=[O:27])[C:31]([O:33][CH2:34][CH3:35])=[O:32])[C@@H:11]([CH3:14])[CH2:12][OH:13]

Participants

Conditions

Temperature: 0 °C

Procedure

Potassium tertiary-butoxide (62 mg) was added to DMF (2 ml) and cooled to 0° C. Then a solution of the compound (100 mg) obtained in Example 51 in DMF (200 μl) was dropped therein to. After stirring for 15 minutes, diethyl ethoxymethylenemalonate was dropped therein to and the resultant mixture was stirred for 8 hours at room temperature. After treating in a conventional manner, it was subjected to silica gel column chromatography to thereby give 137 mg (75%) of the title compound as a colorless solid. The 1H-NMR and IR spectral data of this product was identical with those of the compound obtained in Example 63.

Workup

additionAfter treating in a conventional manner, it

Sources & evidence

ORD record: ord-c96adb10928b41d7981fb57fdafcfa77
Source dataset: uspto-grants-2006_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07087778B2

Linked notes

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