[3-Cyano-4,5-dimethyl-5-(trifluoromethyl)furan-2(5H)-ylidene]malononitrile → HCID 86667561, compound

HRID 85269Notes

Reaction equation

[CH3:1][O:2][C:3]1[C:14]2=[C:15]3[N:10]([CH2:11][CH2:12][CH2:13]2)[CH2:9][CH2:8][CH2:7][C:6]3=[CH:5][C:4]=1[CH:16]=[CH:17][C:18]1[S:22][C:21]([CH:23]=O)=[CH:20][CH:19]=1.[C:25]([C:27]1[C:28](=[C:38]([C:41]#[N:42])[C:39]#[N:40])[O:29][C:30]([CH3:37])([C:33]([F:36])([F:35])[F:34])[C:31]=1[CH3:32])#[N:26]>C(O)C.O1CCCC1>[C:25]([C:27]1[C:28](=[C:38]([C:39]#[N:40])[C:41]#[N:42])[O:29][C:30]([CH3:37])([C:33]([F:36])([F:34])[F:35])[C:31]=1[CH:32]=[CH:23][C:21]1[S:22][C:18]([CH:17]=[CH:16][C:4]2[CH:5]=[C:6]3[C:15]4[N:10]([CH2:9][CH2:8][CH2:7]3)[CH2:11][CH2:12][CH2:13][C:14]=4[C:3]=2[O:2][CH3:1])=[CH:19][CH:20]=1)#[N:26]

Participants

Conditions

Temperature: 60 °C

Procedure

In 5 ml of ethanol and 1.5 ml of tetrahydrofuran were dissolved 135 mg (0.40 mmol) of 5-[2-(8-methoxy-2,3,6,7-tetrahydro-1H,5H-benzo[ij]quinolizine-9-yl)vinyl]thiophene-2-carboaldehyde and 110 mg (0.43 mmol) of 2-(3-cyano-4,5-dimethyl-5-trifluoromethyl-2(5H)-furanylidene)propanedinitrile. The mixture was stirred with heating at 60° C. for 3.5 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 methanol to give 178 mg of a dark brown crystal (yield: 78.1%; mp: 159-161° C.)

Workup

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

Sources & evidence

ORD record: ord-daa8de0bd3e5429a91046efd19f75a3e
Source dataset: uspto-grants-2014_09
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08846955B2

Reaction notes

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