GB362906A - Manufacture of derivatives of naphthalene-1:4:5:8-tetracarboxylic acid - Google Patents

Manufacture of derivatives of naphthalene-1:4:5:8-tetracarboxylic acid

Info

Publication number
GB362906A
GB362906A GB2678530A GB2678530A GB362906A GB 362906 A GB362906 A GB 362906A GB 2678530 A GB2678530 A GB 2678530A GB 2678530 A GB2678530 A GB 2678530A GB 362906 A GB362906 A GB 362906A
Authority
GB
United Kingdom
Prior art keywords
dicarboxylic acid
obtainable
naphthalene
dichloronaphthalene
acid
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
GB2678530A
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
Priority to GB2678530A priority Critical patent/GB362906A/en
Publication of GB362906A publication Critical patent/GB362906A/en
Expired legal-status Critical Current

Links

Abstract

Di-imides of 1 : 4 : 5 : 8-naphthalene tetracarboxylic acid are obtained by causing a metal cyanide to react with a naphthalene-1 : 4- or 1 : 5-dicarboxylic acid substituted in the free a - positions by halogen, or with a reactive derivative such as an amide, nitrile, salt or ester thereof. According to examples, (1) 5 : 8-dichloronaphthalene-1 : 4-dicarboxylic acid, obtainable by chlorinating, followed by hydrolysing, 1 : 4-dicyanonaphthalene, (2) 4 : 8 - dichloronaphthalene - 1 : 5 - dicarboxylic acid, obtainable by causing chloracetylchloride to react with 1 : 5-dichloronaphthalene and oxidizing the product, (3) 5 : 8-dibromonaphthalene-1 : 4-dicarboxylic acid (obtainable by brominating the dicarboxylic acid), (4) 5 : 8 - dichloro - 1 : 4 - di - cyanonaphthalene (obtainable by chlorinating the dicyanide), (5) the corresponding acid diamide or diethyl ester, are treated with alkali and cuprous cyanides to give the di-imide and (6) the parent material of example (3) gives the same product on treatment with cuprous cyanide in benzyl cyanide. The free naphthalene tetracarboxylic acid is obtained also in some cases. The intermediate dicyano-dicarboxylic acids and diamides need not be isolated.
GB2678530A 1930-09-08 1930-09-08 Manufacture of derivatives of naphthalene-1:4:5:8-tetracarboxylic acid Expired GB362906A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2678530A GB362906A (en) 1930-09-08 1930-09-08 Manufacture of derivatives of naphthalene-1:4:5:8-tetracarboxylic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2678530A GB362906A (en) 1930-09-08 1930-09-08 Manufacture of derivatives of naphthalene-1:4:5:8-tetracarboxylic acid

Publications (1)

Publication Number Publication Date
GB362906A true GB362906A (en) 1931-12-08

Family

ID=10249149

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2678530A Expired GB362906A (en) 1930-09-08 1930-09-08 Manufacture of derivatives of naphthalene-1:4:5:8-tetracarboxylic acid

Country Status (1)

Country Link
GB (1) GB362906A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3544303A (en) * 1968-04-03 1970-12-01 Stanford Research Inst Aromatic carboximides as herbicides
CN112778116A (en) * 2020-12-30 2021-05-11 湖北鸿鑫化工有限公司 Preparation method of 1,4-naphthalenedicarboxylic acid

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3544303A (en) * 1968-04-03 1970-12-01 Stanford Research Inst Aromatic carboximides as herbicides
CN112778116A (en) * 2020-12-30 2021-05-11 湖北鸿鑫化工有限公司 Preparation method of 1,4-naphthalenedicarboxylic acid

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