Matches 1 - 34 out of 34


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7824891 Method for producing D-pantothenic acid and/or salts thereof via purification by electrodialysis as an additive for animal feed  
The invention relates to an improved method for producing D-pantothenic acid and/or salts thereof and to the use thereof as an additive for animal feed.
7649120 Microwave-assisted extraction of solanesol from potato stems and/or leaves  
This invention relates to a method of extracting solanesol by microwave-assisted from potato stems and/or leaves. In particular, the invention provides a technique whereby the solanesol can be...
7211172 Method of photochemical synthesis of vitamin Ds  
An enhanced photochemical method of making vitamin D includes irradiating a reaction mixture of precursor molecules with light having a wavelength of 254 nm and with light having a wavelength of...
6902654 Ultraviolet irradiation apparatus for photochemical reaction and preparation process of vitamin D derivative making use of the same  
A process for preparing a vitamin D derivative including providing an ultraviolet irradiation apparatus for photochemical reactions, which has an ultraviolet radiation-emitting lamp, an optical...
6660132 Photochemical and thermochemical solar syntheses using flat-bed solar collectors/solar reactors  
The invention relates to a method for carrying out photochemical and thermochemical solar syntheses by means of flat-bed solar light collectors without devices for focusing the sunlight. The...
6444098 Process for the preparation of tocol acylates and tocopherol acylates  
The present invention relates to a process for preparing tocol acylate or tocopherol acylate having the following steps: a) combining tocol or tocopherol with an acylating agent to form a reaction...
6180805 Photochemical process for the production of previtamin D3  
A photochemical process for the production of previtamin D3 or a derivative thereof from 7-dehydrocholesterol is disclosed. The process includes irradiating the 7-dehydrocholesterol in a reactor...
6045664 Process for the photochemical sulphochlorination of gaseous alkanes  
For manufacturing an alkanesulphonyl chloride by photochemical reaction of an alkane with chlorine and sulphur dioxide, the light source used is a gallium-doped medium-pressure mercury lamp.
5543016 Photoconversion of steroids in microreactors  
The photoconversion of steroids is carried out in microreactors to yield desired products, while limiting the formation of undesirable byproducts. The steroid reactant is combined with a...
5436401 22-oxacholecalciferol derivative and process for preparing the same  
A 22-oxacholecalciferol derivative represented by formula (I): ##STR1## wherein R1 represents a hydrogen atom or a hydroxyl group; and R2 and R3, which may be the same or different, each represent...
5424465 Preparation of 13-(Z)-retinoic acid  
13-(Z)-Retinoic acid is prepared by a) reacting 5-hydroxy-4-methyl-2(5H)-furanone with a [3-methyl-5-(2,6,6-trimethyl-1-cyclohexen-1-yl)-2,4-pentadie nyl]triarylpho sphonium salt and b)...
5338418 Process for production of hydroxocobalamin  
A process for the production of hydroxocobalamin that eliminates cyanocobalamin as an intermediate. Co-enzyme-type vitamin B12 is first absorbed to a divinylbenzene/styrene resin which is washed...
5252191 Method for the photochemical isomerization of organic compounds under the influence of a photosensitizer  
The invention relates to a method for the photochemical isomerization of organic compounds, in particular for the photochemical conversion of tachysterol compounds into previtamin D compounds and...
5021452 Process for enhancing wound healing  
There is disclosed a process for improving wound healing, comprising administering ascorbate or derivatives thereof to a wound site at a concentration of at least 20 μmol/L and irradiating the...
4937292 Photosensitizer  
Photochemical conversion of tachysterols to previtamins is conducted in the presence of a polymeric photosensitizer which has the appropriate chromophore groups, e.g. anthracene groups, attached...
4835258 Conjugation of aromatic amines or nitro-containing compounds with proteins or polypeptides by photoirradiation of the azide derivatives with ultraviolet light in order to produce antibodies against the haptens  
A method of linking primary aromatic amine- or nitro-compounds to carrier proteins by photochemical reactions in order to produce antibodies against the haptens.
4686023 Sensitized photochemical preparation of vitamin D  
Tachysterol-2 or tachysterol-3 is photochemically converted in high yield to previtamin D2 or previtamin D3 respectively, by irradiation in the presence of anthracene as photosensitizer. The...
4609444 Photochemical reactions for commercial synthesis  
Photochemical reactions are conducted using polymer beads arranged as a monolayer, e.g. floating on the surface of a moving body of water. The polymer bead is impregnated with a reactant, floated...
4551214 Photochemical preparation of previtamin D  
Compounds of the formula ##STR1## wherein R1 -R4 is hydrogen or chlorine, R5 is --COOMe or --SO3 Me, Me is an alkali metal cation and X is oxygen, sulfur or selenium, photosensitizers for the...
4517125 Novel vitamin D3 derivatives and process for producing the same  
There are disclosed 6,19-epidioxyvitamin D3 derivatives which are represented by the formula ##STR1## wherein R1, R2 and R3 are each a hydrogen atom or a hydroxyl group; when R1 is a hydrogen...
4490226 Efficient photochemical formation of 1-α-hydroxyprevitamin D3  
An improved method is set out for converting a reactant having a reactant core portion, 5,7-androstadiene-1α,3β-diol, into a product having a product core portion,...
4265822 Process for preparing 1-hydroxylated vitamin D compounds from 5,6-trans-vitamin D compounds  
A method for preparing 1α-hydroxylated vitamin D compounds from 5,6-trans-vitamin D compounds which comprises allylically oxidizing a 5,6-trans-vitamin D compound, subjecting the oxidation product...
4026778 Photochemical isomerization of vitamin A compounds  
A novel procedure for photochemical isomerization of vitamin A compounds or derivatives thereof in the absence of sensitizers is disclosed.
4001096 Process for preparing 25-hydroxycholecalciferol intermediates  
A method for preparing 9β, 10α-cholesta-5,7-diene-3β,25 diol and 25-hydroxyprevitamin D3 by irradiation.
3929770 Process for preparation of steroid derivative  
1α-hydroxychlecalciferol is prepared by reacting cholestra-1,5,7-trien-3β-ol with a triazoline-3,5-dione derivative represented by the formula: ##SPC1## Wherein R1 represents an alkyl group or an...
3491007 METHOD FOR INCREASING THE VITAMIN D CONTENT OF YEAST  
3794573 METHOD FOR THE PRODUCTION OF L-ASCORBIC ACID  
3661939 PROCESS FOR THE PRODUCTION OF VITAMIN D3  
3838029 ISOMERIZATION OF VITAMIN A COMPOUNDS AND THEIR DERIVATIVES  
3575831 PROCESS FOR THE PRODUCTION OF VITAMIN D  
2920083 Method of producing a compound which is capable of increasing the calcium content ofthe blood  
2862934 Method of producing tachysterol and dihydrotachysterol  
2847426 Method of preparing tachysterol  
2840575 Method of producing an isomerisation product of vitamin d or an ester thereof  

Matches 1 - 34 out of 34