MD125C2 - Method of obtaining of 4,1', 6'-trichlor-4,1',6'--trideoxygalactozaccharoze - Google Patents

Method of obtaining of 4,1', 6'-trichlor-4,1',6'--trideoxygalactozaccharoze

Info

Publication number
MD125C2
MD125C2 MD94-0108A MD940108A MD125C2 MD 125 C2 MD125 C2 MD 125C2 MD 940108 A MD940108 A MD 940108A MD 125 C2 MD125 C2 MD 125C2
Authority
MD
Moldova
Prior art keywords
saccharose
obtaining
dichloromethane
temperature
trichlor
Prior art date
Application number
MD94-0108A
Other languages
Romanian (ro)
Russian (ru)
Other versions
MD125B1 (en
Inventor
Khizar Sultan Mufti
Riaz Ahmed Khan
Original Assignee
Tate & Lyle Public Limited Company
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 SU813338232A external-priority patent/SU1431680A3/en
Application filed by Tate & Lyle Public Limited Company filed Critical Tate & Lyle Public Limited Company
Publication of MD125B1 publication Critical patent/MD125B1/en
Publication of MD125C2 publication Critical patent/MD125C2/en

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  • Saccharide Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Abstract

The invention relates to the of saccharose, substituens especially to the obtaining of 4,1', 6'-trichlor-4,1',6'-trideoxygalactosaccharose (TGS) for the sweetening in necessary cases. For the increasing of selection and to simplify the process, the preliminary protection of oxygroups in 6-m saccharose position is done by means of acylating or (CH3CO)2O in pyridil at the room temperature or law temperature [(-30-(-50)°C], or with benzoylhalogenid in dichloromethane in/the presence of Na2CO3, at the environnement temperature with the obtaining of 6-mono-acetate (or benzoate) saccharose. Acylsaccharose obtained chlorates selectively in position 4,1',6', with a chlorous agent (chlorous sulphuryl), with subsequent deacylation and the separation of special product TGS with the efficiency until 15% at the content of 99%.Is rationally that before the chlorating 6-monoacetate of saccharose to separate on cation-exchange resin.The deacylation is by the treatment with natrium methyl in water solution, the extraction with dichloromethane (for the removing of tetrachlorderivers) and than with ethilacetate.
MD94-0108A 1980-07-08 1994-03-16 Method of obtaining of 4,1', 6'-trichlor-4,1',6'--trideoxygalactozaccharoze MD125C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8022320 1980-07-08
SU813338232A SU1431680A3 (en) 1980-07-08 1981-07-07 Method of producing 4, 1 prime, 6 prime-trichloro-4,1 prime, 6 prime-tridioxygalactosaccharose

Publications (2)

Publication Number Publication Date
MD125B1 MD125B1 (en) 1994-12-31
MD125C2 true MD125C2 (en) 1995-07-31

Family

ID=26276147

Family Applications (1)

Application Number Title Priority Date Filing Date
MD94-0108A MD125C2 (en) 1980-07-08 1994-03-16 Method of obtaining of 4,1', 6'-trichlor-4,1',6'--trideoxygalactozaccharoze

Country Status (3)

Country Link
LT (1) LT2148B (en)
LV (1) LV5134A3 (en)
MD (1) MD125C2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1543167A (en) * 1976-01-08 1979-03-28 Tate & Lyle Ltd Sweeteners

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1543167A (en) * 1976-01-08 1979-03-28 Tate & Lyle Ltd Sweeteners

Also Published As

Publication number Publication date
LV5134A3 (en) 1993-06-10
LT2148B (en) 1993-09-15
MD125B1 (en) 1994-12-31

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