IES20180091A2 - Blood circulation diagnosis medication o-sulfonamide benzoic acid synthesis method - Google Patents

Blood circulation diagnosis medication o-sulfonamide benzoic acid synthesis method

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Publication number
IES20180091A2
IES20180091A2 IES20180091A IES20180091A IES20180091A2 IE S20180091 A2 IES20180091 A2 IE S20180091A2 IE S20180091 A IES20180091 A IE S20180091A IE S20180091 A IES20180091 A IE S20180091A IE S20180091 A2 IES20180091 A2 IE S20180091A2
Authority
IE
Ireland
Prior art keywords
solution
benzoic acid
blood circulation
synthesis method
washed
Prior art date
Application number
IES20180091A
Inventor
Peng Xiangliang
Original Assignee
Chengdu Zhong Heng Hua Tie Tech Co 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.)
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Publication date
Application filed by Chengdu Zhong Heng Hua Tie Tech Co Ltd filed Critical Chengdu Zhong Heng Hua Tie Tech Co Ltd
Priority to IES20180091A priority Critical patent/IES86947B2/en
Publication of IES20180091A2 publication Critical patent/IES20180091A2/en
Publication of IES86947B2 publication Critical patent/IES86947B2/en

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

Abstract

Blood circulation diagnosis medication o-sulfonamide benzoic acid synthesis method, comprises the following steps:3 mol 2-benzene sulfonamide-6-bromo-isophenone and 4-5 mol ethylene glycol monoisopropyl ether were added to the reaction vessel, controlled the stirring speed of 130-160 rpm for 30-40 min, and then raise the temperature of the solution to 40-50 °C, 5-6 mol tetrabutyl titanate was added to the reaction vessel by 5-8 times, which was added every 20-30 min, the temperature was controlled at the 55-60 °C, itwas maintained for 130-150 min, then the temperature is reduced to 10-13 °C, the solid is precipitated, filtered and washed with the potassium bromide solution, the pH of the solution is adjusted to 4-5, then the solid is precipitated again, filtered, and washed with the dipropylamine solution, and washed with the dichlorobenzene solution, recrystallizated in ether solution, got the finished o-sulfonamide benzoic acid.
IES20180091A 2018-04-03 2018-04-03 Blood circulation diagnosis medication o-sulfonamide benzoic acid synthesis method IES86947B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IES20180091A IES86947B2 (en) 2018-04-03 2018-04-03 Blood circulation diagnosis medication o-sulfonamide benzoic acid synthesis method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IES20180091A IES86947B2 (en) 2018-04-03 2018-04-03 Blood circulation diagnosis medication o-sulfonamide benzoic acid synthesis method

Publications (2)

Publication Number Publication Date
IES20180091A2 true IES20180091A2 (en) 2019-01-09
IES86947B2 IES86947B2 (en) 2019-01-09

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Family Applications (1)

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IES20180091A IES86947B2 (en) 2018-04-03 2018-04-03 Blood circulation diagnosis medication o-sulfonamide benzoic acid synthesis method

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IE (1) IES86947B2 (en)

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Publication number Publication date
IES86947B2 (en) 2019-01-09

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