JPS57212153A - Purification of naphthalenedisulfonic acid di-lower alkyl ester - Google Patents

Purification of naphthalenedisulfonic acid di-lower alkyl ester

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Publication number
JPS57212153A
JPS57212153A JP9805481A JP9805481A JPS57212153A JP S57212153 A JPS57212153 A JP S57212153A JP 9805481 A JP9805481 A JP 9805481A JP 9805481 A JP9805481 A JP 9805481A JP S57212153 A JPS57212153 A JP S57212153A
Authority
JP
Japan
Prior art keywords
formula
water
reaction product
compound shown
alkyl ester
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
JP9805481A
Other languages
Japanese (ja)
Other versions
JPS5851949B2 (en
Inventor
Shuji Tsuchiya
Hisao Ikeda
Kenji Suzuki
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.)
Nissan Chemical Corp
Original Assignee
Nissan Chemical Corp
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 Nissan Chemical Corp filed Critical Nissan Chemical Corp
Priority to JP9805481A priority Critical patent/JPS5851949B2/en
Priority to US06/387,605 priority patent/US4434104A/en
Publication of JPS57212153A publication Critical patent/JPS57212153A/en
Publication of JPS5851949B2 publication Critical patent/JPS5851949B2/en
Expired legal-status Critical Current

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PURPOSE: In the reaction between naphthalenedisulfonyl chloride and an aliphatic alcohol, to purify the titled compound useful as a drug in high purity, by treating the reaction product with an alkali metal alcoholate, followed by washing it with water.
CONSTITUTION: Naphthalenedisulfonyl chloride shown by the formulaI(the positions of the substituent groups are 1,5- or 2,6-) is reacted with an excess amount of an aliphatic alcohol shown by the formula ROH (R is methyl or ethyl) in the presence of an aqueous solution of an alkali, to give a naphthalenedisulfonic acid dilower alkyl ester shown by the formula II, the reaction product is treated with an alkali metal alcoholate shown by the formula ROM (M is Na or K), and washed with water, to purify the desired compound. A compound shown by the formulaIand a compound shown by the formula III contained in the reaction product as impurities are converted into the desired compound shown by the formula II, while water-soluble impurities are removed by the washing operation with water to give the extremely high-quality compound shown by the formula II.
COPYRIGHT: (C)1982,JPO&Japio
JP9805481A 1981-06-17 1981-06-24 Purification method for naphthalene disulfonic acid di-lower alkyl ester Expired JPS5851949B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP9805481A JPS5851949B2 (en) 1981-06-24 1981-06-24 Purification method for naphthalene disulfonic acid di-lower alkyl ester
US06/387,605 US4434104A (en) 1981-06-17 1982-06-11 Preparation of high purity di-lower alkyl naphthalenedisulfonates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9805481A JPS5851949B2 (en) 1981-06-24 1981-06-24 Purification method for naphthalene disulfonic acid di-lower alkyl ester

Publications (2)

Publication Number Publication Date
JPS57212153A true JPS57212153A (en) 1982-12-27
JPS5851949B2 JPS5851949B2 (en) 1983-11-19

Family

ID=14209537

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9805481A Expired JPS5851949B2 (en) 1981-06-17 1981-06-24 Purification method for naphthalene disulfonic acid di-lower alkyl ester

Country Status (1)

Country Link
JP (1) JPS5851949B2 (en)

Also Published As

Publication number Publication date
JPS5851949B2 (en) 1983-11-19

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