JPH0468301B2 - - Google Patents

Info

Publication number
JPH0468301B2
JPH0468301B2 JP58059945A JP5994583A JPH0468301B2 JP H0468301 B2 JPH0468301 B2 JP H0468301B2 JP 58059945 A JP58059945 A JP 58059945A JP 5994583 A JP5994583 A JP 5994583A JP H0468301 B2 JPH0468301 B2 JP H0468301B2
Authority
JP
Japan
Prior art keywords
dhna
crude
aqueous solution
salt
alkali metal
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 - Lifetime
Application number
JP58059945A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59186942A (ja
Inventor
Hiroyuki Suganuma
Kozo Bando
Kazuaki Sakai
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.)
Kawasaki Kasei Chemicals Ltd
Original Assignee
Kawasaki Kasei Chemicals Ltd
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 Kawasaki Kasei Chemicals Ltd filed Critical Kawasaki Kasei Chemicals Ltd
Priority to JP5994583A priority Critical patent/JPS59186942A/ja
Publication of JPS59186942A publication Critical patent/JPS59186942A/ja
Publication of JPH0468301B2 publication Critical patent/JPH0468301B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
JP5994583A 1983-04-07 1983-04-07 粗製1,4−ジヒドロキシ−2−ナフトエ酸又はその塩の精製法 Granted JPS59186942A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5994583A JPS59186942A (ja) 1983-04-07 1983-04-07 粗製1,4−ジヒドロキシ−2−ナフトエ酸又はその塩の精製法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5994583A JPS59186942A (ja) 1983-04-07 1983-04-07 粗製1,4−ジヒドロキシ−2−ナフトエ酸又はその塩の精製法

Publications (2)

Publication Number Publication Date
JPS59186942A JPS59186942A (ja) 1984-10-23
JPH0468301B2 true JPH0468301B2 (fr) 1992-11-02

Family

ID=13127789

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5994583A Granted JPS59186942A (ja) 1983-04-07 1983-04-07 粗製1,4−ジヒドロキシ−2−ナフトエ酸又はその塩の精製法

Country Status (1)

Country Link
JP (1) JPS59186942A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0744419U (ja) * 1993-10-05 1995-11-21 久仁夫 大塚 電機炊飯器用2種類炊き内がまの穴あき仕切り板
CA2457055C (fr) 2001-08-10 2013-10-08 Meiji Dairies Corporation Procede d'elaboration d'acide 1,4-dihydroxy-2-naphtoique
EP1607383A4 (fr) 2003-03-26 2006-09-27 Meiji Dairies Corp Proc d pour stabiliser de l'acide 1,4-dihydroxy-2-naphto que
CN100364518C (zh) * 2005-12-20 2008-01-30 西安交通大学 1,4-萘二酚用于制备防治生殖道感染的外用杀精避孕药物用途

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB638196A (en) * 1948-05-08 1950-05-31 Douglas James Fry Improvements in or relating to the preparation of hydroxy aromatic carboxylic acids
JPS57126443A (en) * 1981-01-29 1982-08-06 Nippon Shokubai Kagaku Kogyo Co Ltd Preparation of 1,4-dihydroxy-2-naphthoic acid

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB638196A (en) * 1948-05-08 1950-05-31 Douglas James Fry Improvements in or relating to the preparation of hydroxy aromatic carboxylic acids
JPS57126443A (en) * 1981-01-29 1982-08-06 Nippon Shokubai Kagaku Kogyo Co Ltd Preparation of 1,4-dihydroxy-2-naphthoic acid

Also Published As

Publication number Publication date
JPS59186942A (ja) 1984-10-23

Similar Documents

Publication Publication Date Title
EP0055951B1 (fr) Procédé pour la préparation de l'anthraquinone et de ses dérivés substitués
EP0208948B1 (fr) Résolution optique d'un dérivé de l'acide phénylacétique
US3988365A (en) Resolution of 2-(6-methoxy-2-napthyl)propionic acid
JPH0468301B2 (fr)
JP2010505945A (ja) メチル−4−ホルミルベンゾエートとジメチルテレフタレートの単離方法
US5304677A (en) Method for producing 2,6-dihydroxybenzoic acid
JP4397990B2 (ja) 3−アルキルフラバノノール誘導体の精製法
US6087499A (en) Process for producing 5-perfluoroalkyluracil derivatives
KR100789557B1 (ko) 디메틸 테레프탈레이트 제조공정의 부산물로부터메틸-4-포밀벤조에이트와 디메틸 테레프탈레이트의분리회수방법
JPH029576B2 (fr)
JP2697054B2 (ja) p―ヒドロキシベンズアルデヒドの製造方法
JP3291987B2 (ja) O,s−ジメチル−n−アセチルホスホルアミドチオエートの精製法
JPS5950663B2 (ja) γ−アミノ−β−ヒドロキシ酪酸の製造法
US5446198A (en) 4-hydroxy-2,3,5-trifluorobenzoic acid and a process for its preparation
JP2697056B2 (ja) p―ヒドロキシベンズアルデヒドの製造法
CA1135271A (fr) Methode d'obtention de l'acide 3-thienylmalonique
JP2941097B2 (ja) ジヒドロキシフェニル−2−ヒドロキシ酢酸の製造方法
JPH01143847A (ja) 3−(3,5−ジ第3級ブチル−4−ヒドロキシフェニル)プロピオン酸エステルの分離精製法
JPH0469371A (ja) ジメチルホルムアミドの精製法
JP3010819B2 (ja) 2,4−ジクロロ−3− エチル−6− ニトロフェノールの精製方法
CA1145757A (fr) Nouveau procede d'obtention d'acide 5-mercaptotetrazoyl-1 acetique
JP2815438B2 (ja) 1,2―ビス(ニコチンアミド)プロパンの精製方法
KR100359503B1 (ko) 방향족 프로피온산 유도체의 제조방법
JPH06100512A (ja) ケト酸の製造方法
JPS6213936B2 (fr)