2-(3-Cyano-4-methyl-5-phenyl-5-(trifluoromethyl)furan-2(5H)-ylidene)malononitrile → HCID 86667541, compound

HRID 85241Notes

Reaction equation

[CH2:1]([N:5]([CH2:23][CH2:24][CH2:25][CH3:26])[C:6]1[CH:11]=[CH:10][C:9]([CH:12]=[CH:13][C:14]2[S:18][C:17]([CH:19]=O)=[CH:16][CH:15]=2)=[C:8]([O:21][CH3:22])[CH:7]=1)[CH2:2][CH2:3][CH3:4].[C:27]([C:29]1[C:30](=[C:45]([C:48]#[N:49])[C:46]#[N:47])[O:31][C:32]([C:39]2[CH:44]=[CH:43][CH:42]=[CH:41][CH:40]=2)([C:35]([F:38])([F:37])[F:36])[C:33]=1[CH3:34])#[N:28]>C(O)C.O1CCCC1>[CH2:23]([N:5]([CH2:1][CH2:2][CH2:3][CH3:4])[C:6]1[CH:11]=[CH:10][C:9]([CH:12]=[CH:13][C:14]2[S:18][C:17]([CH:19]=[CH:34][C:33]3[C:32]([C:39]4[CH:44]=[CH:43][CH:42]=[CH:41][CH:40]=4)([C:35]([F:38])([F:36])[F:37])[O:31][C:30](=[C:45]([C:48]#[N:49])[C:46]#[N:47])[C:29]=3[C:27]#[N:28])=[CH:16][CH:15]=2)=[C:8]([O:21][CH3:22])[CH:7]=1)[CH2:24][CH2:25][CH3:26]

Participants

Conditions

Temperature: 70 °C

Procedure

In 8 ml of ethanol and 2.5 ml of tetrahydrofuran were dissolved 226 mg (0.61 mmol) of 5-[2-(4-dibutylamino-2-methoxyphenyl)vinyl]thiophene-2-carboaldehyde and 210 mg (0.62 mmol) of 2-(3-cyano-4-methyl-5-phenyl-5-trifluoromethyl-2(5H)-furanylidene)propanedinitrile. The mixture was stirred with heating at 70° C. for 4 hours. The solvent was evaporated off and the residue was washed with ethanol. The residue was purified by silica gel column chromatography and washed with ethanol to give 378 mg of a dark brown powdered crystal (yield: 92.9%; mp: 203-204° C.)

Workup

customThe solvent was evaporated off
washthe residue was washed with ethanol
customThe residue was purified by silica gel column chromatography
washwashed with ethanol

Sources & evidence

ORD record: ord-7af61dd6133245b29de4b35f1bc0b4fa
Source dataset: uspto-grants-2014_09
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08846955B2

Reaction notes

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