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7049435 |
Extractive methods for purifying sucralose
The present invention relates to novel extractive methods for purifying sucralose. The present invention also relates to compositions comprising the sucralose preparations made by the methods of...
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6998480 |
Process for improving sucralose purity and yield
This invention relates to processes for purifying sucralose by the use of an initial non-crystallization purification procedure followed by three or more sequential crystallization steps and...
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6943248 |
Crystalline form of sucralose, and method for producing it
A crystalline form of sucralose, and a method of making it. The method involves continuously crystallizing sucralose from an aqueous solution by a process providing continuous removal and...
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6890581 |
Methods for buffer stabilized aqueous deacylation
The present invention relates to novel methods for stabilizing aqueous deacylation, via use of buffers in the production of sucralose. The present invention provides a process for producing...
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6809198 |
Sucralose composition and process for its preparation
The present invention provides an improved form of sucralose and a process for making it.
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6646121 |
Sucralose composition and process for its preparation
The present invention provides an improved form of sucralose and a process for making it.
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6341175 |
Method of converting color data
Forward conversion functions for converting device data under output conditions into calorimetric values are determined, and an inverse conversion function with a remaining color other than three...
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6205246 |
Color transformation method under two different conditions
The present invention has as an object providing a color transforming method by which transformation can be effected easily making maximum use of the reproduction range and without causing any...
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6160912 |
Method of correcting color conversion data with accuracy
A reference chart of a target color is generated, and device data corresponding to calorimetric data of the reference chart are determined from color conversion data. A balance chart is generated...
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5141860 |
Preparation of acylated sucrose derivatives
Sucrose derivatives partially acylated in each ring can be obtained by treating a fully or partially acylated sucrose derivative with an enzyme having sucrose esterase activity capable of removing...
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5136031 |
Chlorination of sugars
A process for the chlorination of sucrose or a derivative thereof, comprises reaction of the sucrose or derivative thereof with thionyl chloride and a nitrogen base at a ratio of about 1 molar...
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5128248 |
Selective acrylation of sugars
Sucrose or derivatives thereof such as esters are acylated at the 4'- and/or the 6-position by reaction with a donor acyl ester, e.g. a reactive ester of an alkanoic acid or benzoic acid, in the...
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5089608 |
Selective 6-acylation of sucrose mediated by cyclic adducts of dialkyltin oxides and diols
There is disclosed a process which comprises the steps of: (a) reacting a di(hydrocarbyl)tin oxide such as a dialkyltin oxide with a dihydric alcohol, alkanolamine, or an enolizable...
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5023329 |
Sucrose-6-ester production process
Process which comprises reacting sucrose with a di-(hydrocarbyl)tin oxide in an inert organic reaction vehicle with removal of water for a period of time and at a temperature sufficient to produce...
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4980463 |
Sucrose-6-ester chlorination
A process for the chlorination of sucrose-6-esters to produce 6',4,1'-trichlorosucrose-6-esters which comprises the steps of: (a) adding at least seven molar equivalents of an acid chloride to a...
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4977254 |
Process for the chlorination of sugars
Sugars and partly protected sugar derivatives are chlorinated by reaction of unprotected hydroxyl groups with thionyl chloride to form a persulphite followed by decomposition of the sulphite groups...
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4950746 |
Process for synthesizing sucrose derivatives by regioselective reaction
Sucrose is reacted with a 1,3-di(hydrocarbyloxy)-1,1,3,3-tetra(hydrocarbyl)distannoxan
e to produce a 1,3-di-(6-O-sucrose)-1,1,3,3-tetra(hydrocarbyl)distannoxane,
which can be acylated to produce...
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4920207 |
Selected removal of trityl groups from trispa
2,3,4,3',4'-penta-O-acetyl sucrose (4-PAS), a key intermediate in the preparation of sucralose, is prepared by the selective removal of trityl groups from 6,1', 6'-tri-O-trityl-penta-O-acetyl...
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4889928 |
Sucrose alkyl 4,6-orthoacylates
Sucrose 6-acylates, key intermediates in the preparation of sucralose, can be prepared by subjecting a sucrose alkyl 4,6-orthoacylate to mild aqueous acidic hydrolysis to provide a mixture of...
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4826962 |
Tetrachlororaffinose and its use in the preparation of sucralose
The novel chlorinated sugar O-α-D-6-chloro-6-deoxygalactopyranosyl-(1➝6)-α-D-4-chlo ro-4-deoxygalactopyranosyl-(1➝2)-β-D-1, 6-dichloro-1, 6-dideoxyfructofuranoside (TCR) can be used to...
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4801700 |
Process for the preparation of 1,6-dichloro-1,6-dideoxy-β-D-fructofuranosyl-4-chloro-4-deoxy-α -
A process for the preparation of 1,6-dichloro-1,6-dideoxy-β-D-fructofuranosyl-4-chloro-4-deo
xy-α -galactopyranoside comprising the steps of (a) reacting sucrose with a tritylating agent; (b)...
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4783526 |
Chlorination of carbohydrates and other alcohols
Chlorination of carbohydrates and alcohols utilizing a chlorinating reagent selected from triphenylphosphine oxide/thionyl chloride, thiphenylphosphine oxide/phosgene, triphenylphosphine...
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4612373 |
Trichloro, 6-substituted sucrose compounds, compositions and uses therefor
Compounds of the general formula: ##STR1## (in which X represents a hydrogen atom or an alkoxy or arylalkoxy group) are new compounds; those where X represents a hydrogen atom or a methoxy group...
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