JPS59186942A - 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 - Google Patents

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

Info

Publication number
JPS59186942A
JPS59186942A JP5994583A JP5994583A JPS59186942A JP S59186942 A JPS59186942 A JP S59186942A JP 5994583 A JP5994583 A JP 5994583A JP 5994583 A JP5994583 A JP 5994583A JP S59186942 A JPS59186942 A JP S59186942A
Authority
JP
Japan
Prior art keywords
crude
dhna
salt
aqueous solution
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.)
Granted
Application number
JP5994583A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0468301B2 (fr
Inventor
Hiroyuki Suganuma
菅沼　弘之
Kozo Bando
孝三 坂東
Kazuaki Sakai
堺　和昭
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 true JPS59186942A (ja) 1984-10-23
JPH0468301B2 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)

Cited By (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
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
US7374915B2 (en) 2001-08-10 2008-05-20 Meiji Dairies Corporation Process for producing 1,4-dihydroxy-2-naphthoic acid
JP2010233577A (ja) * 2003-03-26 2010-10-21 Meiji Milk Prod Co Ltd １，４−ジヒドロキシ−２−ナフトエ酸（ｄｈｎａ）を含有する飲食品の製造方法

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

Cited By (8)

* 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
US7374915B2 (en) 2001-08-10 2008-05-20 Meiji Dairies Corporation Process for producing 1,4-dihydroxy-2-naphthoic acid
US7629155B2 (en) 2001-08-10 2009-12-08 Meiji Dairies Corporation Process for producing 1,4-dihydroxy-2-naphthoic acid
US7834061B2 (en) 2001-08-10 2010-11-16 Meiji Dairies Corporation Process for producing 1,4-dihydroxy-2-naphthoic acid
US8110607B2 (en) 2001-08-10 2012-02-07 Meiji Co., Ltd. Process for producing 1,4-dihydroxy-2-naphthoic acid
JP2010233577A (ja) * 2003-03-26 2010-10-21 Meiji Milk Prod Co Ltd １，４−ジヒドロキシ−２−ナフトエ酸（ｄｈｎａ）を含有する飲食品の製造方法
US8277860B2 (en) 2003-03-26 2012-10-02 Meiji Co., Ltd. Method of stabilizing 1,4-dihydroxy-2-naphthoic acid
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

Also Published As

Publication number Publication date
JPH0468301B2 (fr) 1992-11-02

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