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JPS5543472B2 |
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JPS5541215B2 |
The 3-methyl-3-butene-1-ol contained in the oily mixture obtained in the production of isoprene by the reaction of isobutene and formaldehyde through the intermediate 4,4-dimethyl-1,3-dioxane can be isolated by adding boric acid to said ...
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JPS55130972A |
The invention provides a process for the continuous manufacture of trioxan, optionally together with cyclic formals, from aqueous formaldehyde solutions in a circulation reactor with evaporator, the vapor/liquid mixture leaving the evapo...
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JPS5523855B2 |
A process for polymerizing trioxane made from an aqueous solution of methanol-containing formaldehyde by a conventional method or copolymerizing the trioxane with another monomer, characterized by cooling the trioxane to crystallize it, ...
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JPS5555180A |
A process for the simultaneous synthesis of trioxan and cyclic formals is provided, which comprises reacting a mixture of concentrated formaldehyde and diol and/or epoxide with acid catalysts at a temperature of from 30 DEG to 150 DEG C.
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JPS5547675A |
PURPOSE: To obtain the title compound useful as a phase transfer catalyst in organic reactions and separation or analysis simply in high yield on an industrial scale free from side reactions, by extracting a crown compound from its compl...
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JPS5512025B2 |
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JPS558821A |
PURPOSE: To obtain the enhanced uptake power by reacting on a carrier a heterogiant cyclic compound having amino groups with an epoxy compound having a given molecular weight and a given number of epoxy groups. CONSTITUTION: A heterogian...
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JPS5443514B2 |
A process for stabilizing trioxane, characterized by adding thereto a specific trivalent organic phosphorus compound is disclosed.
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JPS5441561B1 |
A method is disclosed for the production of peroxide-like derivatives of ozonides by ozonization of the correspoding olefins, comprising the step of placing an olefin in the presence of ozone in solution in a solvent mixture which compri...
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JPS5439391B1 |
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JPS54125297A |
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JPS5429514B2 |
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JPS5426560B2 |
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JPS5490189A |
NEW MATERIAL:A polynuclear metal complex derived from a carboxylic acid of formula I: [R is formlas II, III, and IV (is CH2) or its derivative] and a basic metal salt. The metal atom has a coordination number ≥4, e.g. Cr, Fe or Co. EXA...
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JPS5484021A |
PURPOSE: To prepare the title composition which can be stored at room temperature for a long time without serious decomposition, by adding a crown ether to prostaglandin E (PGE) or its derivatives. CONSTITUTION: A stable PGE preparation ...
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JPS5459294A |
A process is provided for the continuous or semi-continuous production of hetero-macrocyclic compounds including lactones and cyclic esters. The process involves the catalyzed depolymerization of a linear polyester at an elevated tempera...
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JPS5416494A |
PURPOSE: Complexes of 18-crown-6 (1,4,7,10,13,16-hexaoxacyclooctadecane with sulfonamides.
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JPS545971A |
Processes and compositions are described for the use in foodstuff, chewing gum, toothpaste and medicinal product flavor and aroma and tobacco flavor and aroma augmenting, modifying, enhancing and imparting compositions and as foodstuff, ...
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JPS53103488A |
PURPOSE: To prepare trioxane and tetraoxane directly, useful as raw materials for trioxymethylene resin, by irradiation of ionizing radiation to a mixture gas of carbon monoxide and hydrogen.
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JPS5390284A |
PURPOSE: 11,14-Dioxahexadecanolide of formula.
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JPS5323289B1 |
A method is disclosed for the production of peroxide-like derivatives of ozonides by ozonization of the correspoding olefins, comprising the step of placing an olefin in the presence of ozone in solution in a solvent mixture which compri...
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JPS5318514B2 |
1,3,6-TRIOXOCANE IS PREPARED IN A HIGH YIELD BY THE PROCESS WHEREIN AN OLIGOMER CONSISTING OF CONDENSED FORMALDEHYDE AND DIETHYLENE GLYCOL IS PREPARED IN THE PRESENCE OF A CATALYTIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF INORGANI...
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JPS52128389A |
Macrocyclic polyethers, their preparation, complexes of these macrocyclic polyethers and their preparation are described.
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JPS5241181B2 |
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JPS5239835B2 |
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JPS5239836B2 |
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JPS5234607B1 |
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JPS524555B2 |
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JPS51143692A |
The present invention provides a process for making diphthaloyl peroxide by reacting phthalic anhydride with aqueous hydrogen peroxide at a pH controlled to between pH 8 and 10, preferably pH 8.8 to 9.2 and a low temperature preferably m...
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JPS51125100A |
Multiheteromacrocycles are disclosed that contain as part of the macrocycle, assemblies of 2,6-dimethylylpyridine (and their corresponding amine oxides), 2,5-dimethylylfuran, 2,5-dimethylyltetrahydrofuran, Diels-Alder adducts of 2,5-dime...
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JPS5198323A |
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JPS5191281A |
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JPS5170726A |
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JPS5170784A |
Tripinyltrioxanes of the general formula (I): (I) in which the radicals Pin are either dextrorotatory (+) or laevorotatory (-) pinyl radicals; a process for the production of (I) by treatment of an enantiomeric mixture of (+)-3-formylpin...
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JPS519810B2 |
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JPS516218B2 |
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JPS515434B1 |
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JPS514996B1 |
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JPS5110174A |
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JPS5031160B1 |
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JPS5031159B1 |
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JPS5030638B1 |
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JPS5017475B1 |
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JPS5069090A |
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JPS5013790B1 |
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JPS5018493A |
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JPS503292B1 |
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JPS4932869B2 |
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JPS4928518B1 |
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