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JPS63502181A |
An improved process is disclosed for preparing fluoronitrobenzene compounds wherein chloronitrobenzene compounds are reacted with potassium fluoride in a solvent dispersion thereof prepared from a mixture including the solvent, the fluor...
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JPS63502182A |
PCT No. PCT/US87/02829 Sec. 371 Date Feb. 9, 1987 Sec. 102(e) Date Feb. 9, 1987 PCT Filed Dec. 30, 1986 PCT Pub. No. WO87/04148 PCT Pub. Date Jul. 16, 1987.A process is disclosed for preparing fluoroaromatic compounds (such as fluoronitr...
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JPS6340773B2 |
A process for the preparation of compounds containing a difluoromethylene or trifluoromethyl group. A compound containing a carbonyl group, preferbly an acid, acid halide, amide, ketone or any compound containing a perhaloalkylcarbonyl m...
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JPS6334132B2 |
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JPS6334128B2 |
A liquid phase process in which aromatic compounds having at least one halomethyl substituent are fluorinated in the side-claim by reaction with HF using, as catalyst, TaCl5, NbCl5, ReCl5, TaF5, NbF5, ReF5, MoCl3, MoCl4, MoOCl3, MoOCl4, ...
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JPS6328918B2 |
A halogenating compound is described of the general formula which is the kinetically controlled product of the reaction of equivalent amounts of a triaryl phosphite of the formula and chlorine or bromine in a substantially anhydrous iner...
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JPS6319486B2 |
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JPS6312849B2 |
In a process for producing an iodo-aromatic compound which comprises iodinating an aromatic compound having an electron-donating substituent bonded to the benzene ring with iodine in the presence of a solvent, the improvement wherein abo...
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JPS6348230A |
PURPOSE: To obtain the titled compound useful as an intermediate for various fluorine-containing physiologically active compounds which have been hardly synthesized in the past in one stage, by fluorinating a β-ketocarboxylic acid deriv...
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JPS638092B2 |
A process for the preparation of compounds containing a difluoromethylene group in a position alpha to an oxygen atom. An alcohol or a phenol is brought into contact with trifluoroacetic acid or a halide or anhydride thereof in anhydrous...
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JPS6330428A |
There is disclosed a method for the conversion of a carboxylic acid group on the ring of an aromatic or N-heteroaromatic compound to a trichloromethyl group which comprises contacting the aromatic or N-heteroaromatic compound with a phen...
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JPS6314740A |
A process for converting organic hydroxyl-containing compounds to halides which comprises reacting the hydroxyl-containing compound with a phosphorushalide reagent of formula: RnPX5-n wherein n is selected from 1, 2 and 3; R is selected ...
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JPS633030B2 |
PURPOSE:To produce a perfluoro-compound in a high yield by electrochemically fluorinating an org. compound to obtain a perfluoro-compound contg. a polyfluorinated product and by directly fluorinating the polyfluorinated product with gase...
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JPS6310737A |
PURPOSE: To efficiently carry out fluorine substitution reaction of an organic compound having an active halogen atom with an inexpensive fluorinating agent in an aprotic solvent, by using fine particulate anhydrous potassium fluoride ob...
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JPS6254312B2 |
There is described a process for the stabilization of compounds of the general formula wherein X is Cl or Br and Z is hydrogen, halo, C1-C4 alkyl or C1-C4 alkoxy, which compounds are the kinetically controlled products of the reaction of...
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JPS62242631A |
A process for selectively substituting an aromatic nitro group with a halo group which comprises contacting the nitroaromatic compound with a phosphorushalide of formula: RnPX5-n wherein n is selected from 0,1,2 and 3; R is selected from...
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JPS6243985B2 |
Cyclopropanecarboxylic acid derivs. of formula (I) and their functional derivs. are new. In (I), X1 is H, F, Cl or Br; X2 is F, Cl or Br; and X3 is Cl, Br or I. (I) have fungicidal properties and are partic. suitable for combatting phyto...
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JPS6241694B2 |
A process for the preparation of trifluoromethylanilines. Hydrolysis and exchange fluorination of a para-trihalomethyl benzene isocyanate or carbamyl halide are carried out in liquid hydrofluoric acid.
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JPS6236011B2 |
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JPS6225663B2 |
1. Process for the preparation of nitrogen-heterocyclic compounds from the series comprising quinoline, isoquinoline, quinoxaline, quinazoline and phthalazine, which contain at least one chlorine atom in the alpha-position to the ring ni...
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JPS6224410B2 |
1526657 Liquid phase fluorination process HOOKER CHEMICALS & PLASTICS CORP 9 Aug 1977 [1 Nov 1976] 33363/77 Heading C2C The invention relates to the preparation of compounds of formula which comprises contacting compounds of formula in l...
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JPS6213330B2 |
A process for the chlorination of aromatic derivatives. The aromatic derivative is reacted with chlorine gas in liquid hydrofluoric acid. The products obtained are useful as intermediates for the synthesis of compounds having a plant-pro...
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JPS6213329B2 |
A process for the stimulaneous halogenation and fluorination of aromatic derivatives substituted by at least one group containing a halogenoalkyl unit. The aromatic derivative is reacted with the halogen in liquid hydrofluoric acid. The ...
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JPS6210210B2 |
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JPS62500299A |
PCT No. PCT/FR85/00175 Sec. 371 Date Apr. 11, 1986 Sec. 102(e) Date Apr. 11, 1986 PCT Filed Jun. 27, 1985 PCT Pub. No. WO86/00294 PCT Pub. Date Jan. 16, 1986.Agent for the fluoridation of organic compounds having the general formula (I),...
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JPS6226264A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS623136B2 |
Process for halogenating carboxylate compounds having at least one reactive alpha hydrogen substituent, comprising contacting said carboxylate compound with a halogen or halogen source in the presence of an effective amount of a cyanoqui...
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JPS6210035A |
Underbrominated products which are difficult to isolate from the solutions in which they are present are perbrominated by performing an additional bromination in the presence of a bromination catalyst and refluxing the mixture until preb...
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JPS61260030A |
PURPOSE: To carry out the decarbonylation reaction of an organic acid halide at a low cost in improved economicity, without using expensive platinum, etc., by using europium or neodymium which is an inexpensive and highly active rare ear...
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JPS61205220A |
PURPOSE: A quaternary ammonium fluoride and organic sulfonyl chloride are allowed to react with an primary alcohol or its silyl ether under mild conditions to enable high-yield production of the title selectively fluorinated product whic...
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JPS61180727A |
PURPOSE: To produce the aimed compound useful as an intermediate for medicines and agricultural chemicals selectively in high yield, by reacting an aromatic compound having trichloromethyl group with anhydrous hydrogen fluoride in the pr...
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JPS61161224A |
A method for the preparation of organic fluorides which comprises reacting a quaternary phosphonium fluoride or bifluoride with an organic substrate having at least one atom or group capable of being replaced by a fluorine atom.
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JPS6121925B2 |
A process for the halogenation (bromination or chlorination)/nitration/fluorination of aromatic derivatives substituted by at least one group containing a halogenoalkyl unit. The aromatic derivative is reacted with a halogen and a nitrat...
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JPS6121455B2 |
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JPS6121204B2 |
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JPS6116377B2 |
Dihydrooxadiazinones are provided which can be used as blowing agents in various thermoplastic polymeric materials to produce high performance thermoplastic foams. A ketone having at least one alpha -hydrogen atom is halogenated and hydr...
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JPS6114127B2 |
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JPS6113446B2 |
A process for the preparation of a substituted fluorobenzene of the formula in which R is alkyl, alkoxy, halogen, amino, acylamido, carboxyl, benzyloxy, aryloxy, or benzyloxy or aryloxy carrying at least one alkyl, alkoxy, halogen or hal...
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JPS6165831A |
Aromatic bromine compounds are prepared by reacting aromatic nitro compounds with elemental bromine in the gas phase at temperatures between about 310 DEG to 550 DEG C. In this reaction, the nitro groups are selectively replaced by bromi...
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JPS6163627A |
PURPOSE: In the production of the titled substance by diazotization of an aromatic amine with an anhydrous HF and base complex and a nitrous acid donor and following thermal decomposition, the reaction is effected at the decomposition te...
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JPS6143126A |
PURPOSE: To produce an organic fluorine compound from the corresponding aromatic halide having trifluoromethyl group by halogen-exchange reaction at a specific temperature, by using benzonitrile as the reaction solvent. CONSTITUTION: The...
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JPS6110556A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS611420B2 |
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JPS6058728B2 |
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JPS60228429A |
Chloro-aromatic compounds of the formula wherein R is CF3, OCF3, OC2F5, CN, NCO, or COCl, m is 0, 1 or 2; n is 0, 1 or 2; and q is 1 or 2; q + m + n is less than 6; are prepared by the vapor phase chloro-denitration reaction of a chlorin...
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JPS6039048B2 |
A process for preparing benzotrifluoride or derivatives thereof by contacting benzotrichloride or the corresponding derivative with hydrogen fluoride in a gaseous phase in the absence of any catalyst, the contact being carried out in the...
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JPS6037102B2 |
Dihydrooxadiazinones are provided which can be used as blowing agents in various thermoplastic polymeric materials to produce high performance thermoplastic foams. A ketone having at least one alpha -hydrogen atom is halogenated and hydr...
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JPS60161931A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS60158141A |
Fluorine-substituted aromatic compounds are obtained by reacting the corresponding nitro compound with a salt of hydrofluoric acid in the presence of an acid halide.
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JPS6033808B2 |
Organic compounds containing one or more alcoholic hydroxyl groups are transformed into fluorine compounds by reacting them with sulfur tetrafluoride in liquid hydrogen fluoride solution, at temperatures between around -80 DEG C. and +20...
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