GB498405A - Process for the manufacture of 2.2-dimethyl-4.4-dihydroxy-p-phenanthrolin - Google Patents

Process for the manufacture of 2.2-dimethyl-4.4-dihydroxy-p-phenanthrolin

Info

Publication number
GB498405A
GB498405A GB18910/37A GB1891037A GB498405A GB 498405 A GB498405 A GB 498405A GB 18910/37 A GB18910/37 A GB 18910/37A GB 1891037 A GB1891037 A GB 1891037A GB 498405 A GB498405 A GB 498405A
Authority
GB
United Kingdom
Prior art keywords
dihydroxy
dimethyl
phenanthrolin
manufacture
phenylene
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
GB18910/37A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Publication of GB498405A publication Critical patent/GB498405A/en
Expired legal-status Critical Current

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  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

2 : 21 - Dimethyl - 4 : 41 - dihydroxy - p - phenan throlin is manufactured by heating a p-phenylene-bis-b -aminocrotonic acid alkyl ester in the presence of a diluent. The product is useful as an initial material for chemical syntheses. In an example, 1 : 4-phenylene-bis-b -aminocrotonic acid ethyl ester is introduced into paraffin oil heated to 270 DEG C.
GB18910/37A 1936-07-08 1937-07-07 Process for the manufacture of 2.2-dimethyl-4.4-dihydroxy-p-phenanthrolin Expired GB498405A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE498405X 1936-07-08

Publications (1)

Publication Number Publication Date
GB498405A true GB498405A (en) 1939-01-09

Family

ID=6545299

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18910/37A Expired GB498405A (en) 1936-07-08 1937-07-07 Process for the manufacture of 2.2-dimethyl-4.4-dihydroxy-p-phenanthrolin

Country Status (1)

Country Link
GB (1) GB498405A (en)

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