GB668960A - Process for the production of i.io-phenanthroline - Google Patents

Process for the production of i.io-phenanthroline

Info

Publication number
GB668960A
GB668960A GB5440/50A GB544050A GB668960A GB 668960 A GB668960 A GB 668960A GB 5440/50 A GB5440/50 A GB 5440/50A GB 544050 A GB544050 A GB 544050A GB 668960 A GB668960 A GB 668960A
Authority
GB
United Kingdom
Prior art keywords
phenanthroline
acid
dehydrogenating agent
production
aminoquinoline
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
GB5440/50A
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.)
Novartis AG
National Starch and Chemical Investment Holding Corp
Original Assignee
JR Geigy AG
National Starch and Chemical Investment Holding Corp
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 JR Geigy AG, National Starch and Chemical Investment Holding Corp filed Critical JR Geigy AG
Publication of GB668960A publication Critical patent/GB668960A/en
Expired legal-status Critical Current

Links

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  • Nitrogen Condensed Heterocyclic Rings (AREA)

Abstract

1 : 10-Phenanthroline is prepared by a process of treatment of o-phenylene diamine or 8-aminoquinoline with glycerol in presence of sulphuric acid and a dehydrogenating agent, characterized in that the reaction is carried out in the presence of cupric salts and the 1 : 10-phenanthroline is isolated in the form of its copper complex which is then decomposed to give the free base. Preferred conditions are a temperature of 120-140 DEG C., and the use of as a dehydrogenating agent of nitrobenzene sulphonic acid or arsenic acid. Three examples of the process are given.
GB5440/50A 1949-03-04 1950-03-03 Process for the production of i.io-phenanthroline Expired GB668960A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH668960X 1949-03-04

Publications (1)

Publication Number Publication Date
GB668960A true GB668960A (en) 1952-03-26

Family

ID=4527517

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5440/50A Expired GB668960A (en) 1949-03-04 1950-03-03 Process for the production of i.io-phenanthroline

Country Status (1)

Country Link
GB (1) GB668960A (en)

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