1-Aminoanthraquinone → Vat Blue 4

HRID 2226989Notes

Reaction equation

HRID 2226989 reaction equation
[NH2:1][C:2]1[C:15]2[C:14](=[O:16])[C:13]3[C:8](=[CH:9][CH:10]=[CH:11][CH:12]=3)[C:7](=[O:17])[C:6]=2[CH:5]=[CH:4][CH:3]=1>CN1C(=O)N(C)CCC1>[CH:10]1[CH:9]=[C:8]2[C:7]([C:6]3[CH:5]=[CH:4][C:3]4[NH:1][C:2]5[C:15]6[C:14]([C:13]7[C:8]([C:7](=[O:17])[C:6]=6[CH:5]=[CH:4][C:3]=5[NH:1][C:2]=4[C:15]=3[C:14](=[O:16])[C:13]2=[CH:12][CH:11]=1)=[CH:9][CH:10]=[CH:11][CH:12]=7)=[O:16])=[O:17]

Participants

3

Reactant 1

HCID 67101-Aminoanthraquinone

Product 1

HCID 6690Vat Blue 4

Reagents, catalysts & solvents 1

HCID 816462(1H)-Pyrimidinone, tetrahydro-1,3-dimethyl-Solvent

Procedure

102.6 g of 1-aminoanthraquinone (97.5% pure) were condensed in the presence of 200 g (190 ml) of N,N'-dimethylpropyleneurea as described in Example 1 to form indanthrone (I).

Sources & evidence

ORD record
ord-b18c55336ff540c486dc240422b5e89b
Source dataset
uspto-grants-1994_09
Patent number
US05350853

Reaction notes

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