IES20180096A2 - Organic synthesis intermediates m-aminobenzenesulfonic acid synthesis method - Google Patents

Organic synthesis intermediates m-aminobenzenesulfonic acid synthesis method

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Publication number
IES20180096A2
IES20180096A2 IES20180096A IES20180096A IES20180096A2 IE S20180096 A2 IES20180096 A2 IE S20180096A2 IE S20180096 A IES20180096 A IE S20180096A IE S20180096 A IES20180096 A IE S20180096A IE S20180096 A2 IES20180096 A2 IE S20180096A2
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IE
Ireland
Prior art keywords
solution
aminobenzenesulfonic acid
washed
intermediates
synthesis method
Prior art date
Application number
IES20180096A
Inventor
Peng Xiangliang
Original Assignee
Chengdu Zhong Heng Hua Tie Tech Co Ltd
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Application filed by Chengdu Zhong Heng Hua Tie Tech Co Ltd filed Critical Chengdu Zhong Heng Hua Tie Tech Co Ltd
Priority to IES20180096A priority Critical patent/IES86996B2/en
Publication of IES20180096A2 publication Critical patent/IES20180096A2/en
Publication of IES86996B2 publication Critical patent/IES86996B2/en

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Abstract

Organic synthesis intermediates m-aminobenzenesulfonic acid synthesis method, comprises the following steps: adding 2 mol 3-methylaniline, 3-4 mol sulfuric acid solution and 10-13g alumina powder in the reaction vessel, raising the temperature of the solution to 40-45 °C, controlling the stirring speed at 90-110 rpm, stirring for 90-110 min , raising the solution temperature to 70-80 °C, refluxing for30-40min, washed with potassium bromide solution, washed with cyclohexane solution, washed with ketone solution, dehydrated with dehydrating agent, recrystallized in isopropanol solution, finally get the crystal m-aminobenzenesulfonic acid.
IES20180096A 2018-04-03 2018-04-03 Organic synthesis intermediates m-aminobenzenesulfonic acid synthesis method IES86996B2 (en)

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IES20180096A IES86996B2 (en) 2018-04-03 2018-04-03 Organic synthesis intermediates m-aminobenzenesulfonic acid synthesis method

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Application Number Priority Date Filing Date Title
IES20180096A IES86996B2 (en) 2018-04-03 2018-04-03 Organic synthesis intermediates m-aminobenzenesulfonic acid synthesis method

Publications (2)

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IES20180096A2 true IES20180096A2 (en) 2019-05-01
IES86996B2 IES86996B2 (en) 2019-05-01

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IES20180096A IES86996B2 (en) 2018-04-03 2018-04-03 Organic synthesis intermediates m-aminobenzenesulfonic acid synthesis method

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113121392B (en) * 2019-12-30 2022-06-10 上海合丽亚化工科技有限公司 Aminobenzene sulfonic acid compound crystal particles and preparation method thereof

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IES86996B2 (en) 2019-05-01

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