| Document |
Document Title |
|
JP3171400B2 |
PURPOSE: To provide the subject new compd. derivs, useful for coloring in fishery, foods, etc., obtained by decomposing a dienantiomer, a dienamine or a dienolate of canthaxanthin with an aziridine oxidant, while shortening manufacturing...
|
|
JP3171403B2 |
PURPOSE: To provide two kinds of new astaxanthin intermediates which can be used for directly preparing astaxanthin, without use of peracids. CONSTITUTION: The objective intermediates are the compound of formula I (R1-R3 are each 1-6C al...
|
|
JP2001139543A |
To provide a process for the production of carotene crystal having high purity. Carotene crystal having high purity can be produced by dispersing a carotene-containing material in a solvent compatible with hexane, filtering the dispersio...
|
|
JP3162465B2 |
PURPOSE: To convert apocarotenal and lycopene, i.e., polyenes insoluble in polar solvents, into soluble inclusion complexes and enable them to be effectively utilized in drug administration to human bodies and in coloring by causing them...
|
|
JP2001114755A |
To provide a method for producing a vitamin A aldehyde and to obtain an intermediate. This method for producing a vitamin A aldehyde of general formula (2) (Ar is an aryl group which may contain a substituent) comprises reacting an aldeh...
|
|
JP2001114756A |
To provide a method for producing β-carotene. This method for producing a sulfone derivative of general formula (4) (Ar is an aryl group; R is a lower alkyl or a hydroxyl-protecting group; X is a halogen or HSO4) comprises reacting a ph...
|
|
JP3145584B2 |
PURPOSE: To obtain the subject preparation enabling to impart the highly active provitamine A to foods, beverages, etc., and containing the trans isomer in a high concentration by heating and dissolving β-carotene, a fat, and limonene, ...
|
|
JP3133200B2 |
PURPOSE: To obtain the compound useful as a perfume by reaction of readily available or producible θ-cyclohomogeranial as starting material with a propanal alkylimine in the presence of a base followed by hydrolysis with an acid. CONSTI...
|
|
JP3132781B2 |
PURPOSE: To obtain vitamin A acid at a low cost in high yield by oxidizing vitamin A aldehyde in the presence of an acidic substance using an alkali metal chlorite. CONSTITUTION: The objective vitamin A acid can be obtained by oxidizing ...
|
|
JP2000351763A |
To provide an industrially advantageous production method of canthaxanthin and capable of producing it with easy operations and efficiently even in short reaction time.This production method of canthaxanthin comprises oxidation of β-car...
|
|
JP3117803B2 |
PURPOSE: To obtain in high yield an ionone compound useful in the perfume sector without causing any environmental pollution by ring closure of a specific 10-methylundeca-5,9-diene-2-one compound through its contact with a cation exchang...
|
|
JP2000344737A |
To obtain a new methoxyalcohol derivative which is useful as a raw material for synthesizing retinal that is the basic raw material of carotenoids important in the fields of medicines, feed additives, plants, food additives, and so on.A ...
|
|
JP2000344738A |
To obtain a new hydroxyaldehyde derivative which is useful as a raw material for synthesizing retinal that is the basic raw material of carotenoids important in the fields of medicines, feed additives, plants, food additives, and so on.A...
|
|
JP2000515742A |
(57) [Summary] The present invention discloses a method for recovering high-purity β-carotene crystals from a crude crystal preparation obtained from a natural raw material. To remove impurities, the crude crystals were stirred in a sol...
|
|
JP3108474B2 |
PURPOSE: To obtain a new active type vitamin D derivative useful as an agent for osteoporosis, an agent for skin ulcer and an antitumor agent. CONSTITUTION: An active type vitamin D derivative shown by formula I or formula II (R is group...
|
|
JP3105307B2 |
Method for the continuous preparation of beta -carotene solubilisates by brief heating of beta -carotene together with an emulsifier until solution takes place, rapid cooling of the homogeneous solution to below 100 DEG C by addition of ...
|
|
JP2000513743A |
A process for the preparation of irones by a chemical oxidation of irone precursors, comprising treating an iris rhizome substrate selected from the group consisting of iris rhizomes, parts of such rhizomes, iris extracts, iris extractio...
|
|
JP2000510130A |
PCT No. PCT/EP97/02249 Sec. 371 Date Nov. 13, 1998 Sec. 102(e) Date Nov. 13, 1998 PCT Filed May 2, 1997 PCT Pub. No. WO97/43254 PCT Pub. Date Nov. 20, 1997Process for the continuous preparation of alpha - and/or beta -ionone or homologou...
|
|
JP3071233B2 |
|
|
JP2000198770A |
To obtain a new compound useful as an intermediate for producing retinol used in such fields as medicaments, feed additives and food additives. This new compound is a compound of formula I [Ar is a (substituted) aryl; X is a halogen], e....
|
|
JP2000178187A |
To obtain the subject aqueous formulation suitable for parenteral administration by including a polyoxyethylene-660-hydroxystearate as a dissolution-mediating substance.This aqueous formulation comprises a 5-carotene aqueous formulation ...
|
|
JP3056360B2 |
|
|
JP2000143656A |
To produce the subject compound in high yield without causing corrosive actions, etc., with a catalyst by condensing timethylhydroquinone with isophytol in the presence of a specific amine catalyst in supercritical carbon dioxide or supe...
|
|
JP2000143620A |
To obtain the subject new compound useful as an optical material exemplified by a secondary nonlinear optical material, a coloring matter, etc. This new compound is a compound of formula I (m is 0 or 1; n is 0-2; R is a nitro-substituted...
|
|
JP2000106844A |
To obtain a water-dispersible carotenoid composition having excellent storage stability and useful for foods, medicines, cosmetics, and additives such as feeds by adding an emulsifier to a mixture of a carotenoid, etc.This water-dispersi...
|
|
JP2000103983A |
To shift the absorption peak of a carotenoid in ultraviolet/visible range spectrum to deep side and obtain a new color by using an organic sulfur compound.An organic sulfur compound (preferably lipoic acid and/or a lipoic acid derivative...
|
|
JP3029689B2 |
|
|
JP2000063351A |
To synthesize retinal without passing through unstable retinol by using a sulfonic acid obtained by coupling a specific cyclic sulfonic acid derivative with a specific aryl halide derivative. Retinal is obtained by treating a sulfonaldeh...
|
|
JPH11513707A |
PCT No. PCT/HU96/00057 Sec. 371 Date May 4, 1998 Sec. 102(e) Date May 4, 1998 PCT Filed Oct. 8, 1996 PCT Pub. No. WO97/15554 PCT Pub. Date May 1, 1997Chromoplasts and/or chloroplasts are isolated from plant material. This wet mass is dig...
|
|
JPH11315065A |
To provide a new novel sulfone derivative that is useful as a synthetic intermediate for retinol useful in the fields of medicines and feed additives. This compound is represented by formula I [Ar is a (substituted) aryl; X is a halogen;...
|
|
JP2960547B2 |
A process for purifying vitamin A consisting of heating a vitamin A preparation in an inert atmosphere, at a temperature below 170 DEG C. and a pressure of less than 4 mm of mercury, said heating taking place in a vessel shielded from li...
|
|
JP2948923B2 |
|
|
JP2945504B2 |
A process for the manufacture of certain cycloalkenylalkenes, e.g. vitamin A acetate, comprises dehydrating 1-(5-acetoxy-3-methyl-penta-1,3-dienyl)-2,6,6-trimethyl-cycl
o hexanol or 4 aetoxy-1-(5-acetoxy-3-methyl-penta-1,3-dienyl)-2,6,6-...
|
|
JP2943089B2 |
Compounds of the formula wherein R1 is CH=CY-C(CH3)=CHX wherein X and Y are different and each is of the formula wherein R' and R'' independently are H or alkyl of C1-6 and R1 includes all possible geometric isomers. are demonstrated eff...
|
|
JPH11228496A |
To provide a method for selectively, and industrially advantageously producing a polyene derivative important as a medicine intermediate from a cheap raw material without passing β-ionone by subjecting a specific alcohol derivative of a...
|
|
JP2921600B2 |
PCT No. PCT/DE90/00397 Sec. 371 Date Mar. 25, 1991 Sec. 102(e) Date Mar. 25, 1991 PCT Filed May 25, 1990 PCT Pub. No. WO90/14329 PCT Pub. Date Nov. 29, 1990. (I) (a) (II) (III) (IV) Compounds of formula (I) in which the residues have the...
|
|
JPH11187894A |
To obtain a composition which contains highly pure 9-cig-β-carotene, and to provide a method capable of producing it in an industrial scale. This composition is obtained by washing, with ethanol, dry powder of cells of an algae which be...
|
|
JPH11180901A |
To avoid problems such as predissolution of reactants and produce the subject high-quality compound having various structures in good yield using a nontoxic solvent by carrying out the Wittig reaction according to a specific method. The ...
|
|
JP2910995B2 |
Naphthalene derivatives of formula (I), their racemates, isomers and salts are new. X = C(CH3)2, O or S; R1 = -(CH2)n-Z-(CH2)o-Y; Y = OH, SH, trimethyl ammonium, CN, amino or -COR3; Z = methylene or O; R2 = COR3 or hydroxymethyl; R3 = H,...
|
|
JPH11506922A |
The present invention relates to non-absorbable, non-digestible fat compositions fortified with a water soluble carotenoid/cyclodextrin complex. The compositions are useful as fat substitutes in food and pharmaceutical compositions. The ...
|
|
JP2907955B2 |
The invention provides a process for preparing flavouring and perfume complexes by converting one or more carotenoids like carotenes, xanthophylls etc. into a reaction product with organoleptic properties in the presence of a liquid solv...
|
|
JP2901776B2 |
Preparation of a compound of formula in which the dotted lines show the location of a single or double bond, the symbol R<1> denotes a hydrogen atom or a methyl radical, the symbol R<2> denotes a saturated or unsaturated C1-C4 alkyl radi...
|
|
JPH11147868A |
To efficiently obtain the subject compounds useful as a medicine or a feed-additive by heating a specific cis-vitamin A compounds in the presence of a palladium-carbon catalyst. (A) A 11-cis-vitamin A compound of formula I [Z is formyl, ...
|
|
JP2898718B2 |
|
|
JPH11130748A |
To provide a novel compound that is useful as an intermediate for medicines as retinol and the like. This compound is represented by formula I (R is H, a protecting group of OH; R1 is a protecting group for OH) and is typically 1-acetoxy...
|
|
JPH11116552A |
To obtain a zeaxanthin in high yield from a readily available trimethylcyclohexanone through few reaction processes via an important intermediate. This zeaxanthin is obtained through the following process: (4R)-4-hydroxy-2,2,6-trimethylc...
|
|
JP2883705B2 |
The invention relates to a process for the preparation of alpha - and beta -iron, that is to say the compounds of the formula I, and to novel intermediates in this synthesis. ……
|
|
JP2869442B2 |
|
|
JP2859961B2 |
New antitumoral biotenside ester and phosphatide with vitamin D and vitamin E compounds are disclosed, as well as a process for preparing the same and for producing spontaneously dispersible concentrates therefrom, and processes for deve...
|
|
JPH11502210A |
PCT No. PCT/EP96/01040 Sec. 371 Date Oct. 22, 1997 Sec. 102(e) Date Oct. 22, 1997 PCT Filed Mar. 11, 1996 PCT Pub. No. WO96/29306 PCT Pub. Date Sep. 26, 1996Carotene is recovered from a native fat or oil in five process steps in an econo...
|
