P-Anisidine → HCID 178492261, compound

HRID 437969Notes

Reaction equation

HRID 437969 reaction equation
[CH3:1][O:2][C:3]1[CH:9]=[CH:8][C:6]([NH2:7])=[CH:5][CH:4]=1.[C:10]([C:13]1[C:14](=[O:24])[O:15][C:16]([OH:23])=[C:17]([C:20](=O)[CH3:21])[C:18]=1[OH:19])(=[O:12])[CH3:11]>CO>[C:10]([C:13]1[C:14](=[O:24])[O:15][C:16](=[O:23])[C:17](=[C:20]([NH:7][C:6]2[CH:8]=[CH:9][C:3]([O:2][CH3:1])=[CH:4][CH:5]=2)[CH3:21])[C:18]=1[OH:19])(=[O:12])[CH3:11]

Participants

4

Reactant 2

HCID 7732P-AnisidineHCID 1354659693,5-Diacetyl-2,6-dihydroxy-4h-pyran-4-one

Product 1

HCID 178492261HCID 178492261, compound

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

Similarly, equimolar amounts of p-methoxyaniline and 3,5-diacetyl-4,6-dihydroxy-2H-pyran-2-one are refluxed in methanol to give, upon workup, 5-acetyl-4-hydroxy-3-[1-(p-methoxyphenylamino)ethylidene]-2H-pyran-2,6(3H)-dione, m.p. 212°-214° C.

Sources & evidence

ORD record
ord-04b6415f3f704bd782b2ad36857cedf5
Source dataset
uspto-grants-1977_06
Patent number
US04032652

Reaction notes

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