FI921844A - Process for the purification of 2,6-diisopropylphenol - Google Patents

Process for the purification of 2,6-diisopropylphenol Download PDF

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Publication number
FI921844A
FI921844A FI921844A FI921844A FI921844A FI 921844 A FI921844 A FI 921844A FI 921844 A FI921844 A FI 921844A FI 921844 A FI921844 A FI 921844A FI 921844 A FI921844 A FI 921844A
Authority
FI
Finland
Prior art keywords
diisopropylphenol
propofol
degree
purification
solvent
Prior art date
Application number
FI921844A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI92317C (en
FI92317B (en
FI921844A0 (en
Inventor
Kauko Nieminen
Peter Essen
Original Assignee
Leiras Oy
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
Priority claimed from FI912102A external-priority patent/FI912102A/en
Application filed by Leiras Oy filed Critical Leiras Oy
Priority to FI921844A priority Critical patent/FI92317C/en
Publication of FI921844A0 publication Critical patent/FI921844A0/en
Publication of FI921844A publication Critical patent/FI921844A/en
Application granted granted Critical
Publication of FI92317B publication Critical patent/FI92317B/en
Publication of FI92317C publication Critical patent/FI92317C/en

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

Abstract

The invention relates to a novel process for purifying 2,6-diisopropylphenol (propofol). The invention is characterised in that a crude product which his obtained from its preparation is crystallised at a temperature at which propofol crystallises but the isomers and other phenol derivatives which are formed in the reaction are still liquid, i.e. at -25 - +18 degree C, in particular at -20 -10 degree C, without solvent or by means of using a suitable solvent, such as hexane or petroleum ether.
FI921844A 1991-04-30 1992-04-24 Process for the purification of 2,6-diisopropylphenol FI92317C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FI921844A FI92317C (en) 1991-04-30 1992-04-24 Process for the purification of 2,6-diisopropylphenol

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FI912102 1991-04-30
FI912102A FI912102A (en) 1991-04-30 1991-04-30 FOERFARANDE FOER RENING AV 2,6-DIISOPROPYLFENOL
FI921844A FI92317C (en) 1991-04-30 1992-04-24 Process for the purification of 2,6-diisopropylphenol
FI921844 1992-04-24

Publications (4)

Publication Number Publication Date
FI921844A0 FI921844A0 (en) 1992-04-24
FI921844A true FI921844A (en) 1992-10-31
FI92317B FI92317B (en) 1994-07-15
FI92317C FI92317C (en) 1994-10-25

Family

ID=26158954

Family Applications (1)

Application Number Title Priority Date Filing Date
FI921844A FI92317C (en) 1991-04-30 1992-04-24 Process for the purification of 2,6-diisopropylphenol

Country Status (1)

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FI (1) FI92317C (en)

Also Published As

Publication number Publication date
FI92317C (en) 1994-10-25
FI92317B (en) 1994-07-15
FI921844A0 (en) 1992-04-24

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Owner name: BAYER SCHERING PHARMA OY

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