Patents
Patents for C07C 201 - Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton (5,786)
06/1984
06/12/1984US4454361 Crystal purification
06/12/1984US4454344 Method for the resolution of racemic 2-(p-difluoromethoxyphenyl)-3-methylbutyric acid
05/1984
05/29/1984US4451681 From aminodinitroteluene through nitramine intermediate
05/23/1984EP0109049A2 Process for preparation of substituted dihydropyridines and intermediates therefor
05/22/1984US4450297 Acetalization of mixture of (o-or m-) nitrobenzaldehyde, distillation, then reconverting
05/16/1984EP0108604A1 Preparation of mono-nitro aromatic compounds
05/15/1984US4448982 Esterification of a phenoxy benzoic acid
05/08/1984US4447662 Beta-dicarbonyl compounds for the promotion of aromatic nitration by nitrogen tetroxide
05/08/1984US4447654 Process for separating nitrated phenolic compounds from other phenolic compounds
05/01/1984US4446075 Substituted bromofluorobenzene derivatives and process for its manufacture
04/1984
04/18/1984EP0105480A1 Process for preparing a diester of oxalic acid
04/17/1984US4443621 p-Nitrophenyl 3-bromo-2,2-diethoxy-propionate and synthetic utility therefor
04/17/1984US4443248 Phenoxyphenoxypropionic acids and derivatives, and their use as herbicides
04/17/1984CA1165769A1 Biocidal 2-aryl-1,3-cyclohexanedione enol ester compounds
04/04/1984EP0105008A1 Process for the elimination of nitrosating agents from nitro-aromatic compounds
04/03/1984US4440962 Purification using aqueous bisulfite solution; nitrosamines
04/03/1984US4440692 Adamantanyl-, blocking agent in peptide synthesis
03/1984
03/28/1984EP0104144A2 Use of a mixture of a diaryliodosyl salt and a catalyst as curing agent in heat curable epoxy resins
03/21/1984EP0103544A1 Method for the arylation of olefines with aryl chlorides catalysed by Pd
03/21/1984EP0103197A1 Acidic O-nitroaromatics as photoinhibitors of polymerization in positive working films
03/20/1984US4438043 Alkylation or aralkylation with trihalomethyl compound, hydrolysis
03/07/1984EP0101760A1 Process for producing fluorobenzophenone derivatives
03/06/1984US4435208 Herbicidally active substituted phenoxycinnamic acid derivatives
03/06/1984CA1163199A1 Aqueous solution of nitroglycerin
02/1984
02/29/1984EP0101570A1 Method for the resolution of racemic 2-CP-difluoromethoxy phenyl)-3-methylbutyric acid
02/21/1984US4433162 Method for preparing an ester of nitroacetic acid
02/14/1984US4431842 Oxide or salt of group ii metal as catalyst for vapor-phase reaction of alkanol and hn03 or n02
02/14/1984US4431834 Indan or tetralin derivatives; plant growth regulators; grasses
02/08/1984EP0100120A1 Improvement in the process for preparing biaryl compounds via coupling of an arylamine with an arene
01/1984
01/31/1984US4429169 Process for separating isopropylated m-cresols
01/31/1984CA1161442A1 3,3-dimethyl-1-phenoxy-butan-2-ols, a process for their preparation and their use as intermediate products
01/24/1984CA1161054A1 Process for the preparation of vinylcyclopropane derivatives
01/18/1984EP0098681A2 Novel dinitrobenzophenone solution and process for preparing an ether solution of diaminobenzophenones therefrom
01/18/1984EP0098677A2 Process for preparing dinitrobenzophenones
01/18/1984EP0098457A2 (1S,2R,3R)- and (1R,2S,3S)-nitrilo-1-carbonyl-3-methyl-2-oxy-heptanes and -hept-5-enes useful in the total synthesis of cyclosporins and processes for their production
01/18/1984EP0098456A2 Peptides comprising a (1S,2R,3R)- or (1R,2S,3S)-1-nitrilo-1-carbonyl-3-methyl-2-oxy-heptane or -hept-5-ene residue useful in the total synthesis of cyclosporins, and processes for their production
01/17/1984US4426543 Molecular sieve catalyst
01/17/1984US4426538 Process for the preparation of optionally p-chlorine-substituted 2,6-diaminotoluene
01/17/1984CA1160646A1 Process for the selective aliphatic chlorination of alkylbenzenes
01/17/1984CA1160638A1 Substituted phenoxybenzyloxycarbonyl derivatives, and their use as insecticides and acaricides
01/11/1984EP0098241A1 Hydroquinone ethers and a process for preparing them
01/11/1984EP0097940A1 Process for the preparation of araliphatic alcohols
01/11/1984EP0097926A1 Quaternary ammonium salts and their use as drag reducing agents
01/10/1984CA1160245A1 Antihypertensive polyhalohydroxyisopropyl phenylalkanoic and phenylalkenoic acids, amides and esters and intermediates thereto
01/03/1984US4424385 Synthesis of nitromethane
12/1983
12/28/1983EP0097006A1 Preparation of nitro-olefins
12/27/1983US4422870 Biocidal 2-aryl-1, 3-cyclohexanedione enol ester compounds
12/20/1983USRE31467 Triaryl or diarylpyridyl methanes
12/20/1983US4421940 Group 2a compound as catalyst
12/20/1983US4421937 Separation from liquid by compression of interstitial spacings
12/07/1983EP0095697A1 2,2-Dimethyl-3-aryl-cyclobutanones, a process for their preparation and new 2,2-dimethyl-3-aryl-4-halo-cyclobutanones
12/07/1983EP0095696A1 Process for the preparation of 2,2-dimethyl-3-aryl-cyclopropane carboxylic acids and their esters, intermediate products therefor and processes for their preparation
12/06/1983US4419514 Method for converting carboxylic acid groups to trichloromethyl groups
11/1983
11/29/1983US4418230 Method for gaseous phase nitration of aromatics
11/29/1983US4418229 Displacement of chloronitrobenzenes with a fluoride salt, quaternary ammonium phase transfer catalysts
11/29/1983US4418221 Solvent extraction with a nitrogen containing heterocyclic compounds
11/29/1983US4417919 3-Haloalkoxy-4-nitro-2'-chloro-4'-trifluoromethyldiphenyl ethers and herbicidal use thereof
11/24/1983WO1983004021A1 2,3,4-trinor-1,5-inter-m-phenylene-prostacycline-i2 analogues, process for the preparation thereof and pharmaceutical compositions containing the same
11/22/1983US4417080 Solvent modification of nitrations by N2 O4 /metal acetylacetonate systems
11/22/1983US4417053 Oxidation of a hydroxy amide or ester with cobalt catalyst
11/22/1983US4416734 Separation of nitroalkanol by azeotropic distillation
11/16/1983EP0093945A2 1,4-Dihydropyridine derivatives
11/15/1983US4415744 Using a catalytic adduct of an oxide of aluminum or silicon or both and sulfur trioxide selectivity
11/09/1983EP0093696A2 Benzo-1,4-chinones
11/09/1983EP0093522A1 Nitration of organic compounds and organic nitrogen compounds produced
11/08/1983US4414017 Herbicidal 3-butyrolactones
11/08/1983CA1156503A1 Photographic material containing a 1-halo-3-aryl-1- propyne derivative as stabilizing agent
11/02/1983EP0092627A1 Process for the preparation of di- or trifluoromethoxyphenyl ketones or of di- or trifluoromethylthiophenyl ketones
11/02/1983EP0092591A1 Process for preparing 1-chloro-2,6-dinitro-4-(trifluoromethyl) benzene free from nitrosating agents
11/01/1983US4413144 4-Isopropyl-4'-nitrobenzophenone and a process for the preparation of 4'-nitrobenzophenones substituted in the 4-position
11/01/1983CA1156263A1 Process for preparing m,m'-dinitrobenzophenone
10/1983
10/26/1983EP0092372A1 Process for nitration of benzene
10/26/1983EP0092267A1 A process for producing o-nitrobenzaldehyde
10/25/1983CA1155870A1 Nitration of holobenzenes
10/25/1983CA1155869A1 Alkoxylation of cresylic acids
10/19/1983EP0091851A1 Process for preparing aryl ethers carrying different substituents on the two aromatic nuclei
10/19/1983EP0091575A1 Process for the preparation of o-nitrobenzaldehyde
10/18/1983US4410746 Preparation of nitro-olefins
10/12/1983EP0091383A1 Process for the catalytic reduction of nitro-aromatic compounds
10/05/1983EP0090204A1 Optically active levorotatory derivatives of phenoxy-benzoic acid, method for their preparation and their use as herbicides
10/05/1983EP0090183A1 Polyhalogenated aromatic compounds
10/04/1983US4407823 Novel phenylacetic acid derivatives
10/04/1983US4407729 Catalysts
09/1983
09/28/1983EP0089769A1 9-Substituted carbacyclin analogues
09/28/1983EP0089538A1 Optically active derivatives of phenoxy-benzoic acid, process for their preparation and their use as herbicides
09/28/1983EP0089517A1 Process for the preparation of diphenyl ethers
09/27/1983CA1154460A1 Process for the preparation of nitrosobenzene
09/27/1983CA1154459A1 Water removal in nitration of aromatic hydrocarbons
09/21/1983EP0089330A2 Preparation of substituted benzylic halides
09/20/1983US4405805 Process for recovering and purifying herbicidal phenoxybenzoic acid derivatives
09/20/1983US4405529 Method for the preparation of difluoromethoxyaromatic compounds
09/14/1983EP0088667A1 Halogenated aromatic diamines, process for their preparation and their use in the preparation of polyurethanes
09/13/1983US4404148 Method for the preparation of difluoromethoxyaromatic compounds
09/13/1983CA1153767A1 Herbicidal (phenoxy)phenoxy-4-methyl-crotonates, 3- butyrolactones and 1-carbalkoxy-cyclopropanes
09/06/1983US4402978 Gastro-protecting activity of substituted derivatives of 4-phenyl-4-oxo-2-hydroxy-butanoic acid
09/06/1983US4402862 Stabilization of hygroscopic salts
09/06/1983CA1153393A1 Cyanide reduction in nitroaromatic process
08/1983
08/31/1983EP0087218A1 Guanidine derivatives
08/23/1983US4400563 Process for preparing perfluoro(lower)alkylbenzenes and their derivatives
08/23/1983CA1152529A1 1,3-diformyloxy-2-bromo-2-nitropropane
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