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JPH0572894B2 |
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JPH0570613B2 |
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JPH0567140B2 |
The invention relates to novel sulfonic acid esters of formula I (I) wherein R1 is C5-C6cycloalkyl which is unsubstituted or substituted by C1-C7alkyl, unsubstituted or substituted phenyl, R2 is C1-C7alkyl, R3 is phenyl which is substitu...
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JPH0565521B2 |
A process for producing a water-soluble acid amide compound which comprises heating (a) a carboxylic acid compound having at least one carboxyl group in the molecule and being incapable of forming a 5-membered cyclic acid imide linkage a...
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JPH0560464B2 |
1. A process for the preparation of a nitroxyl of the formula I see diagramm : EP0157738,P6,F1 in which E1 and E3 are independently of one another C1 -C5 alkyl or phenyl, E2 and E4 are independently of one another C1-5 S alkyl or E1 and ...
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JPH0558608B2 |
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JPH0558629B2 |
In the present invention an amide represented by the general formula: W - @ - B - Y is produced using a sulfonium salt represented by the general formula: as the starting material, to synthesizing a novel compound, i.e., an active ester ...
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JPH0558419B2 |
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JPH0557993B2 |
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JPH0555490B2 |
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JPH0555489B2 |
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JPH05194334A |
PURPOSE: To obtain a carboxylate useful as a surfactant by allowing a specified primary hydroxyl group-contg. compd. to react with an inorg. or org. halo-contg. oxidizing agent in the presence of a base and hindered nitroxide. CONSTITUTI...
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JPH0550337B2 |
An amine is reacted with dimethyformamide in the presence of a solid catalyst to produce a formamide corresponding to the amine. The solid catalyst includes an oxide of metals belonging to Groups III, IV and V of the Periodic Table.
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JPH0533214B2 |
A tertiary amine is effectively prepared by reacting a primary or secondary amine with formaldehyde in the presence of a palladium or platinum catalyst at a hydrogen pressure of 3 to 50 kg/cm2 (gauge pressure) at a temperature of 80 DEG ...
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JPH0533097B2 |
Aromatic compounds are nitrated in the vapor phase via a process comprising contacting the aromatic compounds with a nitrating agent in the presence of a nitration promoting catalyst comprising the adduct of a Group 4b-Group 3b metal oxi...
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JPH0532402B2 |
A process for producing a water-soluble dicarboxylic acid imide compound which comprises adding a primary amine compound to an aqueous solution of a water-soluble salt of a dicarboxylic acid compound containing at least one dicarboxylic ...
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JPH0529216B2 |
A novel sequence of highly selective chemical reactions for conversion of 3-Aryl-2-propyn-1-ols into cis-1-Aryl-3-fluoro-1-propene and into D,L-(threo)-1-Aryl-2-acylamido-3-fluoro-1-propanols is disclosed. Preparation of D-(threo)-1-Aryl...
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JPH0528210B2 |
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JPH0597714A |
PURPOSE: To produce nitriles from aldehydoximes under nearly neutral and mild conditions in high efficiency by using a haloiminium salt as a dehydration agent. CONSTITUTION: A nitrile (e.g. 3-nitrobenzonitrile) is produced by using a com...
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JPH0525550B2 |
Catalysts compositions useful to catalyze the nitration of aromatic compounds in the vapor phase to produce nitroaromatic compounds are represented by the empirical formula: (M1aM2bOc)x(NO2)y wherein M1 is at least one element selected f...
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JPH0518627B2 |
The invention relates to a ruthenium promoted nickel and/or cobalt dehydrogenation-hydrogenation catalyst. The ruthenium on the catalyst is applied from a solution containing a ruthenium halide compound. The catalyst use in organic react...
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JPH0517893B2 |
1. Process for the preparation of hydrochlorides of polar, water-soluble compounds having a protonatable nitrogen atom in a solvent, characterised in that the following steps are carried out : a) treatment of the polar, water-soluble com...
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JPH0475207B2 |
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JPH0470943B2 |
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JPH04308600A |
PURPOSE: To obtain a reactor for peptide synthesis an a kit for peptide synthesis capable of efficiently synthesizing the objective peptide. CONSTITUTION: The objective reactor 1 for peptide synthesis has at least tubular side wall part ...
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JPH0457661B2 |
Process for the manufacture of quaternary ammonium compounds by reacting a compound having a terminal epoxy group with a tertiary amine which is partly present as the free amine and partly present in the form of a salt, followed by the a...
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JPH0448779B2 |
N-acylated mercapto- alpha -amino acids of the general formula (I) are prepared by reacting a nitrile of the general formula R1-CN (II) at a temperature between 0 DEG C. and 100 DEG C. in water or in a mixture of water and an organic sol...
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JPH04208233A |
PURPOSE: To produce an allylic compound under a mild condition by reacting an allylic alcohol with a nucleating agent in the presence of a Pd compound, a phosphine and CO2 and in the presence of absence of an alkali(ne earth) metal (bi)c...
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JPH04198160A |
NEW MATERIAL:The compound of formula I [X is none or 1-10C hydrocarbon group; Y is NR1R1 (R1 and R2 are alkyl), group of formula II (forming an N- containing 5- or 6-membered heterocyclic group; R3 is hydrocarbon group which may contain ...
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JPH04193854A |
PURPOSE: To obtain the subject compound in a high yield and at a low cost by reacting previously produced glycolonitrile with an ammonium source supplied in a specified molar ratio at such a rate as to keep the pH of the reaction system ...
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JPH0441128B2 |
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JPH0422890B2 |
A method and apparatus are provided for synthesizing organic compounds in which reactants A and B are bound to respective polymeric supports and P/ &cir& and P'/ &cir& . Reactant A is bound to P/ &cir& via a linking moiety alpha min and ...
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JPH04108740A |
PURPOSE: To obtain an alcohol in high selectivity useful as synthetic intermediate, for plant protective derivatives, by reacting an epoxide with a nucleophilic compound containing a labile hydrogen in the presence of a specific metal co...
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JPH0482867A |
NEW MATERIAL:A diazo compound obtained by reaction of phenols having alkyl in which α-position or β-position is substituted with hydroxy, holgen, acyloxy, alxoycarbonyl or oxirane ring at m-position with a diazonium salt. EXAMPLE: An o...
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JPH0414085B2 |
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JPH0413329B2 |
Oximes can be converted to the corresponding amides by contacting the oximes with a non-zeolitic molecular sieve, which has in its calcined form an adsorption of isobutane of at least about 2 percent by weight of the non-zeolitic molecul...
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JPH043380B2 |
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JPH03287546A |
PURPOSE: To prepare the subject substance in good productivity, good catalyst separability and excellent safety by hydrogenating an aromatic nitro compound in the presence of a platinum group metal catalyst in a water-soluble solvent and...
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JPH03275661A |
PURPOSE: To promote the urethanization reaction by adding a protonic acid to a diisocyanate compound obtained by the reaction of a diamine with dimethyl carbonate produced essentially without using phosgene in the reaction process. CONST...
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JPH0374131B2 |
1. A process for the selective hydrogenation of unsaturated compounds bearing nitrogen-containing reducible groups in homogeneous phase, the nitrogen-containing reducible groups remaining intact, characterized in that a compound correspo...
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JPH03504495A |
Chemical reactions are readily carried out using supercritical carbon dioxide as the reaction medium. Supercritical carbon dioxide is of special value as a reaction medium in reactions for synthesizing polypeptides, for sequencing polype...
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JPH03188030A |
PURPOSE: To safely perform the reaction in a conventional open system without employing any specific reaction device by using hydrazine or the hydrate thereof as a hydrogen source when an amine having a benzyl group to a benzyl group- re...
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JPH0346446B2 |
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JPH0339046B2 |
Disclosed is a process for preparing 2-alkyl-4-amino-5-aminomethylpyrimidine comprising (i) a first step of reacting 2-alkyl-4-amino-5-formylpyrimidine with ammonia in an inert solvent in the presence of at least one compound selected fr...
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JPH03502331A |
Disclosed is an improved process for the preparation of haloaromatic amines by the catalytic hydrogenation of halonitroaromatic compounds in the presence of a chromium-containing Raney cobalt catalyst. The catalyst gives good hydrogenati...
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JPH03103440A |
PURPOSE: To obtain the subject deriv. capable of easily regenerating a polyimido- affinitive substance useful for a condenser by supplying electrons to an aromatic part to bring them into contact with a specific electrophilic reagent and...
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JPH0328413B2 |
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JPH0328412B2 |
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JPH0388802A |
PURPOSE: To provide a compound suitable for manufacturing a medicinal product or medicine composition comprising a N-acyl urea or O-acyl isourea derivative of hyaluronic acid or its salts and having no chemically bound collagen. CONSTITU...
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JPH0372434A |
PURPOSE: To obtain a deacylating agent useful for e.g. eliminating a protecting group from an ester by the deacylation in an organic solvent under a substantially neutral condition, exerted in drug synthetic process, by immobilizing a sp...
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