GB199721A - Process of manufacturing amino perylene quinones - Google Patents

Process of manufacturing amino perylene quinones

Info

Publication number
GB199721A
GB199721A GB15644/23A GB1564423A GB199721A GB 199721 A GB199721 A GB 199721A GB 15644/23 A GB15644/23 A GB 15644/23A GB 1564423 A GB1564423 A GB 1564423A GB 199721 A GB199721 A GB 199721A
Authority
GB
United Kingdom
Prior art keywords
quinone
quinones
manufacturing amino
hot
bromo
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB15644/23A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB199721A publication Critical patent/GB199721A/en
Expired legal-status Critical Current

Links

Abstract

Aminoperylene quinones and their bromo derivatives are obtained by the reduction of the corresponding nitro compounds. According to the examples, a suspension of mono- or dinitroperylene quinone or of bromodinitroperylane quinone in caustic soda solution is heated with sodium bisulphite and a current of air then blown through the hot liquid to precipitate the amino compound, which is recrystallized from hot aniline or nitrobenzene. Diaminoperylene quinone and its bromo derivative dye cotton violet from the vat. Specification 199,720 is referred to.
GB15644/23A 1922-06-20 1923-06-15 Process of manufacturing amino perylene quinones Expired GB199721A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT199721X 1922-06-20

Publications (1)

Publication Number Publication Date
GB199721A true GB199721A (en) 1924-07-10

Family

ID=3668647

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15644/23A Expired GB199721A (en) 1922-06-20 1923-06-15 Process of manufacturing amino perylene quinones

Country Status (1)

Country Link
GB (1) GB199721A (en)

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