Water → HCID 131710714, compound

HRID 328735Notes

Reaction equation

[CH:1]1[CH:6]=[C:5]2[C:7]3[C:27]4=[C:28]([CH:31]=[CH:32][C:25]5=[C:26]4[C:10]4[C:11]6[C:23](=[N:24]5)[C:22]5[C:17](=[CH:18][CH:19]=[CH:20][CH:21]=5)[C:15](=[O:16])[C:12]=6[CH:13]=[CH:14][C:9]=4[N:8]=3)[C:29](=[O:30])[C:4]2=[CH:3][CH:2]=1.O.[S:34](=[O:38])(=[O:37])([OH:36])[OH:35]>>[CH:20]1[CH:21]=[C:22]2[C:23]3[C:11]4=[C:12]([CH:13]=[CH:14][C:9]5=[C:10]4[C:26]4[C:27]6[C:7](=[N:8]5)[C:5]5[C:4](=[CH:3][CH:2]=[CH:1][CH:6]=5)[C:29](=[O:30])[C:28]=6[CH:31]=[CH:32][C:25]=4[N:24]=3)[C:15](=[O:16])[C:17]2=[CH:18][CH:19]=1.[S:34]([O-:38])([O-:37])(=[O:36])=[O:35]

Participants

Reactant 3

HCID 962Water

HCID 1118Sulfuric Acid

HCID 68059Benzo[h]benz[5,6]acridino[2,1,9,8-klmna]acridine-8,16-dione

Product 1

HCID 131710714HCID 131710714, compound

Procedure

30 Parts of crude flavanthrone were dissolved in 300 parts of concentrated sulfuric acid. 36 Parts of water were added dropwise at 50°-70° C, the flavanthrone-sulfate crystals formed were suction-filtered via an acid-resistant filter at room temperature and washed with about 150 parts of 80% sulfuric acid. The filter cake was introduced while stirring into 300 parts of water, the dyestuff was filtered and washed with water until free from acid. 63 Parts of an aqueous filter cake were obtained having a content of solid body of 43%.

Sources & evidence

ORD record: ord-e3a8c7914e0e4382b8581e851e183a21
Source dataset: uspto-grants-1977_04
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US04018791

Reaction notes

Loading…