Sulfuric Acid → HCID 20357177, compound

HRID 2083654Notes

Reaction equation

[CH3:1][C:2]([C:4]([OH:6])=[O:5])=[CH2:3].[NH2:7][C:8]1[C:21]2[C:20](=[O:22])[C:19]3[C:14](=[CH:15][CH:16]=[CH:17][CH:18]=3)[C:13](=[O:23])[C:12]=2[C:11]([OH:24])=[CH:10][CH:9]=1.B(O)(O)O.S(=O)(=O)(O)O>>[C:4]([CH:2]([CH3:1])[CH2:3][NH:7][C:8]1[C:21]2[C:20](=[O:22])[C:19]3[C:14](=[CH:15][CH:16]=[CH:17][CH:18]=3)[C:13](=[O:23])[C:12]=2[C:11]([OH:24])=[CH:10][CH:9]=1)([OH:6])=[O:5]

Participants

Reactant 4

HCID 1118Sulfuric Acid

HCID 4093Methacrylic Acid

HCID 7628Boric Acid

HCID 83231-Amino-4-hydroxyanthraquinone

Product 1

HCID 20357177HCID 20357177, compoundYield 94%

Procedure

22 Parts of α-methacrylic acid are gradually added to a mixture of 23.9 parts of 1-amino-4-hydroxyanthraquinone, 6.2 parts of boric acid and 150 parts of 90% sulphuric acid at 35°-40° C, and the mixture is then stirred for 16 hours at 85°-90° C. The reaction mixture is processed as previously described to give 31 parts (94%) of 1-(β-carboxypropylamino)-4-hydroxyanthraquinone.

Sources & evidence

ORD record: ord-78bbc0f673e849e8bc6a2b1f50c398bc
Source dataset: uspto-grants-1978_04
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US04086252

Reaction notes

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