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DE102010034968B4 Polymerizable compounds and liquid-crystal media  
Liquid-crystalline medium which comprises one or more compounds selected from the compounds of the formulas IA-1 to IA-10contains wherein R1' to R5' each independently of one another hydrogen,...
DE102005058542A1 Erythruloseester as UV filters  
The Invention relates to compounds according to formula I, wherein X, Y and Z are O, NH or N-alkyl, Sp, Sp ', Sp' 'can be identical or different and are -H, - (CH2)n-, - (CH2)n-C (= O) - (CH2)O-...
DE102004025195A1 A process for preparing alkyl glycosides  
object The invention provides a process for the preparation of alkyl polyglycosides from monomeric glycosides, oligo- or polyglycosides and alcohols, according to the general scheme(Glyc-O)zH +...
DE19714255B4 A process for the production of alkyl and / or alkenyl oligoglycosides by acetalization of a direct glucose / fatty alcohol suspension in the presence of acid catalysts  
A process for the production of alkyl and / or alkenyl oligoglycosides by direct acetalization of a glucose / fatty alcohol suspension in the presence of acidic catalysts, wherein the total molar...
DE10226367A1 Gangliosides with modified acyl function  
A ganglioside mixture is prepared, the gangliosides of the following general formula I: DOLLAR A (sugar) -OCH¶2¶-CH (-NH-CO-R · 1 ·) -CH (OH) -CH = CH-R · 2 · Wherein DOLLAR A (sugar) represents a...
DE10029709A1 A process for the preparation of dendritic structures  
The invention relates to a method wherein high-substituted alkynyl halogenides are reacted with CH-acid carbonyl compounds in the presence of a reducing agent.
DE19854402A1 Using Phosphonameisensäurederivaten for the therapeutic and prophylactic treatment of infections  
The invention relates to the use of a compound of formula (I) for the prophylaxis and therapy of infectious processes in humans and animals, which processes are induced by bacteria, fungi or...
DE19918088A1 Glycosyl-inositol phospho-Ceramide (GIPC), processes for their preparation and their use  
The present invention provides a method for the isolation of glycosyl-inositol Phopho-ceramides and their use as immunomodulators available. The inventive method comprises the following basic...
DE19827305A1 Preparation of ethoxylated allyloligoglycosides, useful as polymerisable (co)monomers to form polymers useful as co-builders in washing agents  
Ethoxylated allyloligoglycosides (I) are new. Ethoxylated allyloligoglycosides of formula (I) are new: R<1>O(CH2CH2O)n(G)p (I) R<1> = allyl residue; G = a 5-6C sugar residue; n, p = 1-10....
DE19802277A1 Production of lower alkyl or alkenyl oligoglycosides useful as solubilizing agents, intermediates for organosilicon compounds and transacetalization reagents  
In the production of lower alkyl or alkenyl oligoglycosides by acid-catalyzed acetalization of sugars with alcohols, water is continuously removed from the reaction equilibrium by vapor...
DE19733255A1 New GM3-ganglioside-lactone analogues used for active immunisation  
GM3-ganglioside-lactone analogues of formula (I) are new. R1 = hydroxy-protecting group, linear or branched alkyl (optionally functionalised), linear or branched spacer group with ester, acid,...
DE19714255A1 A process for the production of alkyl and / or alkenyl oligoglycosides  
In a process for preparing alkyl and/or alkenyl oligoglycosides by direct acid acetalisation of glycose with excess fatty alcohols, suspensions of glucose syrup in fatty alcohol are used.
DE19538751A1 Defoaming of aqueous surfactant  
The invention relates to antifoam dispersions for aqueous surfactant systems which can be used as antifoam agents, in particular for detergents and cleaners and textile finishing liquors .. The...
DE19534366A1 Tetra-O-benzyl or -allyl-D-glucopyranose prepn.  
Prepn. of 2,3,4,6-tetra-O-(benzyl or allyl)-D-glucopyranose of formula (I) involves dissolving octa-O-(benzyl or allyl)sucrose of formula (II) in an organic solvent with addn. of an acid (e.g....
DE19531264A1 Cationic unsaturated saccharides and polymers prepared therefrom and their use  
cationic, unsaturated saccharides of the formula I $ F1 in which $ AR ↑ 1 ↑ has a deoxysaccharide radical having 1 to 20 monomer units, $ AR ↑ 2 ↑ has the same meaning as R ↑ 1 ↑ or C ↓ 1 ↓ -C ↓...
DE4418842A1 Colourless, thermostable, non-toxic cyclised oligo- or poly:saccharide use as charge controller or enhancer  
The use of cyclised oligo- or polysaccharides (I) with 3-100 monomeric saccharide units as charge controllers and charge enhancers for electrophotographic toners and developers, in...
DE4444606A1 Sennoside A and B prodn.  
Prodn. of sennosides A and B (I) comprises oxidising rheinanthrone-8-glucoside (II) with oxygen or an oxygen source in the presence of active charcoal as the catalyst. The (I) obtd. are converted...
DE4329093A1 Substituted aminoalkylglycosides  
The present invention relates to substituted ( omega -aminoalkyl)glycosides of the general formula (I) in which the substituents have the formula indicated in the description, to processes for the...
DE4242890A1 A process for preparing GD2 and O-acetyl-GD2 ganglioside  
The invention relates to a process for the isolation and purification of commercially utilizable amounts of GD2- and O-acetyl-GD2 ganglioside from fish liver, in particular from the families of...
DE4236630A1 A process for the production of alkyl and / or alkenyl oligoglucosides  
Alkyl and/or alkenyl oligoglucosides may also be produced by the direct acetalisation process if one uses as sugar components spray-dried and thermally postprocessed starch degradation products...
DE4234019A1 Alkyl and / or alkenyl oligoglycoside ester sulfonate salts  
The alkyl- and/or alkenyloligoglycoside ester sulphate salts described can be prepared by transesterifying, in the presence of alkaline catalysts, alkyl- and/or alkenyloligoglycosides of the...
DE4231833A1 Alkyl and/or alkenyl poly:glucoside prod. - by acid-catalysed reaction of fatty alcohol with sugar in falling-film reactor  
Prodn. of alkyl and/or alkenyl oligoglycosides (I) is effected by acid-catalysed acetalisation of fatty alcohols with sugars in a falling-film reactor. The reaction is carried out at 145-160 deg....
DE4221444A1 Polymeric Lewis X saccharides and processes for their preparation  
The invention relates to a process for preparing polymeric Lewis X saccharides of the formula $ F1 wherein $ F2 is $ F3, $ A a process for preparing corresponding intermediates, $ A and new...
DE4221190A1 Quick and simple recovery of ganglioside G LAC 2 from milk cream - by extn. with alkanol, concn. of anionic exchanger and chromatographic purificn., eliminating pollution of anionic solvents  
Recovery of ganglioside Glac2 (I; (New Acoalpha)23Galbeta4Glcbeta1Cer) from milk cream comprises: (1) extracting the cream with a water-miscible extractant; (2) removal of the pptd. solid extract...
DE4204907A1 NOVEL glycoconjugates WITH N-SUBSTITUTED neuraminic AS A MEANS TO STIMULATE THE IMMUNE SYSTEM  
A new type of glucosphingolipides having the general formula (I) is disclosed, as well as a process for preparing the same and pharmaceutical agents containing them useful to stimulate the immune...
DE4200850A1 Bleaching alkyl and/or alkenyl glycoside with peroxy cpd. - in presence of stabiliser e.g. aluminium ions and alkali silicate(s), with prod. used for washing and rinsing compsn.  
A process for bleaching alkyl- and/or alkenylglycosides using peroxy cpds, is improved by effecting the process in presence of stabilisers from Al ions, alkali silicates, sugar acids and organic...
DE4242467A1 Telomerisation of conjugated alkadiene with sugar in aq. sec. or tert. alkanol - with palladium catalyst, with initial addn. of part of alkadiene, heating and continuous addn. of remaining alkadiene  
Telomerisation of conjugated alkadiene with sugar involves (a) prepn. of mixt. contg. sugar, solvent comprising saturated aliphatic sec. or tert. alcohol and water, catalytic amt. of Pd catalyst...
DE4119698A1 New poly:ol ether] ester] prepn., useful as surfactants - comprises reacting poly-hydric alcohol and 1,2-butadiene in presence of palladium salt, tri:phenyl phosphine, isopropanol and opt. water  
Polyoletheresters (A) are prepd. by reacting: (a) a polyhydric alcohol contg. at least 2 hydroxyl gps., e.g., saccharose, glucose, sorbitol, etc. and (b) a conjugated diene, pref. 1,2-butadiene;...
DE4040656A1 METHOD FOR PRODUCING alkyl and / or ALKENYLGLYCOSIDESTERN WITH IMPROVED COLOR QUALITY  
Bright-coloured alkyl and/or alkenyl glycoside esters are obtained if: (a) a mixture containing an alkyl and/or alkenyl glycoside, a fatty acid ester, a basic alkaline or alkaline earth salt, at...
DE4040655A1 METHOD FOR PRODUCING ALKOXYLATED alkyl and / or ALKENYLGLYCOSIDPARTIALESTERN  
Bright-coloured alkoxylated alkyl and/or alkenyl glycoside partial esters are obtained if: (a) a mixture containing an alkyl and/or alkenyl glycoside and a solvent is treated with a reducing...
DE4025330A1 New lipid deriv. modulators of glycosphingolipid biosynthesis - modulate intercellular communication, allowing control of proliferation in malignant cells  
Lipid derivs. of formula (I) are new. In (I) R1, R2 = H or Me; Y = H or an 8-22C acyl gp. opt. cong. 1-6 C=C double bonds; Z = OH, Me, SR3, N-pyrrolidinyl, N-piperidinyl, N-morpholinyl,...
DE4021760A1 sulfated ALKDIENYLGLYKOSIDE  
Disclosed are substances with surface-active properties obtained by reacting alkdienyl glycosides with sulphuring agents, followed by neutralization and hydrolysis of the reaction products with...
DE4015733A1 Mono and/or di:ester(s) of alpha D-methyl-glucoside prepn. - by solvent-free process in presence of carrier impregnated with basic catalyst and poly:carboxylic acid soap  
The solvent-free prepn. of mono- and/or diesters (I) of alpha-D-methyl glucoside comprises direct esterification of fatty acids of chain length 8-20C with alpha-D-methyl glucoside using a catalyst...
DE4013077A1 METHOD FOR SYNTHESIS OF GLYCOSIDASEKATALYSIERTEN glycoconjugates  
Glycoconjugates of formula I $ F1 can be prepared thereby that the compound of the formula II $ F2 in the R ↑ 1 ↑ fluorine, a hydroxyl group, an alkoxy group having 1 to 5 C atoms, an alkenyloxy...
DE4004884A1 New bis-glycoside(s) from specified diol(s)  
New bisglycosides of formula Gly-O-CHR2-(CH2)p- (XR1)n-(CH2)q-(CHR3)m-O-Gly (I) are claimed, as are diols of formula HO-CHR2-(CH2)p-(XR1)n-(CH2)1- (CHR3)m-OH (II) as intermediates for prepn. of...
DE4003094A1 Prodn. of retinyl glycoside derivs.  
(A) 4-Glycopyranosyloxy-2-methyl -2-buten-1-al derivs. of formula (IVa) and (Va) are new: R4 = CH2OAc or COOMe; Ac = acetyl. (B) Prodn. of retinyl glycosides of formula (I) is effected by (a)...
DE3918135A1 New sulphonated alkenyl:glycoside derivs. - prepn. and use as anionic surfactant  
New sulphonated alkenylglycosides (I) with a sulphate: sulphonate ratio of 7:3-1:1 are prepd. by reacting alkenylglycosides of formula R-O(CqH2qO)m-Gp (II) with reactants which introduce sulphate,...
DE3840044A1 Glycosphingolipids WITH KOPPLUNGSFAEHIGER GROUP IN SPHINGOIDANTEIL, THEIR PRODUCTION AND USE  
The invention relates to the chemical modification of the sphingoid components of glycosphingolipids. Through a series of reactions, an amino group could be introduced in the position of the...
DE3718340A1 Process for the biotechnological preparation of glycosides  
In a process for the biotechnological preparation of glycosides from the components aglycone and sugar, plant cells which have been cultivated in vitro are incubated in a nutrient medium in the...
DE3628240A1 Allyl ethers of galactopyranose, process for their preparation and polymerisation and use of the polymers  
Allyl ethers of galactopyranose of the formula in which X is a protective group, Y = -CH3 or and R = C1- to C18-alkyl. Process for the preparation of the allyl ethers of the formula I by reacting...
Matches 1 - 40 out of 40