DE2860341D1 - Process for the preparation of 1-amino-8-hydroxy naphthalene-3,6-disulphonic acids (h-acids). - Google Patents

Process for the preparation of 1-amino-8-hydroxy naphthalene-3,6-disulphonic acids (h-acids).

Info

Publication number
DE2860341D1
DE2860341D1 DE7878100358T DE2860341T DE2860341D1 DE 2860341 D1 DE2860341 D1 DE 2860341D1 DE 7878100358 T DE7878100358 T DE 7878100358T DE 2860341 T DE2860341 T DE 2860341T DE 2860341 D1 DE2860341 D1 DE 2860341D1
Authority
DE
Germany
Prior art keywords
acids
amino
preparation
disulphonic
hydroxy naphthalene
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
DE7878100358T
Other languages
English (en)
Inventor
Willi Dr Schossler
Rolf Dr Putter
Horst Dr Behre
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.)
Bayer AG
Original Assignee
Bayer 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 Bayer AG filed Critical Bayer AG
Priority to DE7878100358T priority Critical patent/DE2860341D1/de
Application granted granted Critical
Publication of DE2860341D1 publication Critical patent/DE2860341D1/de
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
    • C07C303/02—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof
    • C07C303/22—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof from sulfonic acids, by reactions not involving the formation of sulfo or halosulfonyl groups; from sulfonic halides by reactions not involving the formation of halosulfonyl groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
DE7878100358T 1977-07-16 1978-07-11 Process for the preparation of 1-amino-8-hydroxy naphthalene-3,6-disulphonic acids (h-acids). Expired DE2860341D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE7878100358T DE2860341D1 (en) 1977-07-16 1978-07-11 Process for the preparation of 1-amino-8-hydroxy naphthalene-3,6-disulphonic acids (h-acids).

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19772732266 DE2732266A1 (de) 1977-07-16 1977-07-16 Verfahren zur herstellung von 1-amino-8-naphthol-3,6-disulfonsaeure (h-saeure)
DE7878100358T DE2860341D1 (en) 1977-07-16 1978-07-11 Process for the preparation of 1-amino-8-hydroxy naphthalene-3,6-disulphonic acids (h-acids).

Publications (1)

Publication Number Publication Date
DE2860341D1 true DE2860341D1 (en) 1981-02-12

Family

ID=6014125

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19772732266 Withdrawn DE2732266A1 (de) 1977-07-16 1977-07-16 Verfahren zur herstellung von 1-amino-8-naphthol-3,6-disulfonsaeure (h-saeure)
DE7878100358T Expired DE2860341D1 (en) 1977-07-16 1978-07-11 Process for the preparation of 1-amino-8-hydroxy naphthalene-3,6-disulphonic acids (h-acids).

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19772732266 Withdrawn DE2732266A1 (de) 1977-07-16 1977-07-16 Verfahren zur herstellung von 1-amino-8-naphthol-3,6-disulfonsaeure (h-saeure)

Country Status (6)

Country Link
US (1) US4166826A (de)
EP (1) EP0000495B1 (de)
JP (1) JPS5419955A (de)
BR (1) BR7804542A (de)
DE (2) DE2732266A1 (de)
IT (1) IT7850308A0 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4325889A (en) * 1978-08-04 1982-04-20 Bayer Aktiengesellschaft Process for the preparation of 1-amino-8-naphthol-3,6-disulphonic acid (H-acid)
DE2843680A1 (de) * 1978-10-06 1980-04-24 Bayer Ag Verfahren zur herstellung von 1-amino-8-naphthol-4,6-disulfonsaeure (k-saeure)
DE3118147A1 (de) 1981-05-07 1982-12-02 Bayer Ag, 5090 Leverkusen Verfahren zur isolierung von h-saeure und k-saeure
CN1057521C (zh) * 1997-08-16 2000-10-18 吉林化学工业股份有限公司染料厂 1－氨基－8－奈酚－3.6二磺酸单钠盐生产工艺的改进
CN108003071A (zh) * 2017-12-04 2018-05-08 大柴旦乐青科技化学有限公司 一种h酸高压碱熔工艺
CN107986997A (zh) * 2017-12-08 2018-05-04 荆门市熊兴化工有限公司 一种用于h酸生产过程中的碱熔方法
CN109096154A (zh) * 2018-08-16 2018-12-28 山东裕源集团有限公司 一种h酸生产工艺

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1670406A (en) * 1925-05-09 1928-05-22 Newport Co Process of preparing h-acid
US1573056A (en) * 1925-05-09 1926-02-16 Newport Co Process of preparing 1, 8-aminonaphthol sulphonic acids

Also Published As

Publication number Publication date
BR7804542A (pt) 1979-03-20
JPS5419955A (en) 1979-02-15
DE2732266A1 (de) 1979-02-01
EP0000495B1 (de) 1980-11-26
EP0000495A1 (de) 1979-02-07
US4166826A (en) 1979-09-04
IT7850308A0 (it) 1978-07-14

Similar Documents

Publication Publication Date Title
AR242417A1 (es) Procedimiento para la preparacion de pirrolo-¡3,4-c¿-pirrolenos
AU512051B2 (en) Process for preparing 1, 4: , 6-dianhydro-d-glucitol-2-nitrate
DE2857516D1 (en) Process for the preparation of 1-amino-8-hydroxy-naphthalene-3,6-disulphonic acid (h acid).
PT67847A (en) Process for the preparation of interphenylene 8-aza-9-dioxothia-11,12-secoprostaglandins
GB2000137B (en) Process for the preparation of 7,8-dihydro-14-hydroxynormorphine
DE2860341D1 (en) Process for the preparation of 1-amino-8-hydroxy naphthalene-3,6-disulphonic acids (h-acids).
GB2013239B (en) Process for preparing foods.
DE2861204D1 (en) Process for the preparation of halogenovinyl-substituted 2-tetrahydrofuranones, selected halogenovinyl-substituted 2-tetrahydrofuranones
GB2032434B (en) Process for the preparation of 6 - piperidino - 2,4 - diamino - pyrimidine - 3-oxide
GB2027014B (en) Process for the preparation of 5-halo-6,9 -oxido-prostaglandin derivatives
IL62842A0 (en) Process for the preparation of n-di-n-propyl-2,6-dinitro-4-trifluoro-methylaniline
PT68544A (en) Process for the preparation of 5-substituted-10,11-dhiydr-o-5h-dibenzo (a,d)cyclohepten-5,10-imines.
DE2860211D1 (en) Process for the preparation of alpha-hydroxy-beta,beta-dimethyl-gamma-butyrolactone
DE2860107D1 (en) Process for the preparation of 4,6-dihalogeno-1,3,5-triazines
GB2039904B (en) Process for the preparation of 1-chloro-2-methyl-3,3a-dihydro-2h,9h-isoxazolo(3,2-b)(1.3)-benzoxazin-9-one
GB2001310B (en) Process for the preparation of 5,6-diaminouracil
DE3361226D1 (en) Process for the preparation of 1-azolyl-3,3-dimethyl-1-phenoxy-butan-2-oles
DE3361197D1 (en) Process for the preparation of 3-alkyl-2,5-dihydrofuran-2-ones
DE2961990D1 (en) Process for the preparation of 1-amino-8-hydroxy-naphthalene-4,6-disulphonic acid (k acid)
DE3160037D1 (en) Process for the preparation of 2,4,6-trifluorotriazine-(1,3,5)
PT67927A (en) Process for preparing d-homosteroids.
PT68626A (en) Process for the preparation of 2-furyl-(3,4-dimethyl-2-pyridyl)-carbinol
PT67605A (en) Process for the preparation of 2,9-dioxatricyclo(4,3,1,o,3,7)decanes
DE2960679D1 (en) D-homosteroids, process for their preparation
IL56201A (en) Process for the preparation of 1,1-dihalogeno - 4-methyl-1,3,-pentadienes

Legal Events

Date Code Title Description
8339 Ceased/non-payment of the annual fee