| Patents for C07C 41 - Preparation of ethers; Preparation of compounds having groups, groups or groups (17,242) |
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| 04/16/1991 | CA1283092C Heterogeneous alkoxylation using anion-bound metal oxides |
| 04/10/1991 | EP0421679A1 Process for the preparation of glycol ethers |
| 04/10/1991 | EP0421678A1 Process for the preparation of catalysts |
| 04/10/1991 | EP0421677A1 Process for the preparation of glycol ethers |
| 04/10/1991 | EP0421385A1 Process for producing p-hydroxyneophyl m-phenoxybenzyl ether |
| 04/09/1991 | CA1282800C Acid catalyzed process |
| 04/09/1991 | CA1282787C Synthesis of aryloxypropanolamines and arylethanolamines |
| 04/05/1991 | CA2026138A1 Process for the preparation of catalysts |
| 04/05/1991 | CA2026116A1 Process for the preparation of glycol ethers |
| 04/04/1991 | WO1990015044A3 Reactive compounds containing perfluorocyclobutane rings |
| 04/03/1991 | EP0420756A2 Process for catalytically producing monoalkylether of dihydric phenol compound |
| 04/03/1991 | EP0420556A2 Process for the preparation of 4-bromo-3-alkylphenyl ethers |
| 04/03/1991 | EP0419628A1 Process for the production of tertiary alkyl ethers and tertiary alkyl alcohols |
| 04/03/1991 | EP0419550A1 Process for producing high octane gasoline |
| 04/02/1991 | US5004842 Aromatic vinyl ether compounds and compositions, and method of making the same |
| 04/02/1991 | US5004841 Para-substitutions with crystalline acidic mordenite zeolite alkylation catalysts |
| 03/28/1991 | CA2023977A1 Anisole bromination |
| 03/27/1991 | EP0419419A1 Process for the safe and pollution-free preparation of highly pure alkylene oxide adducts |
| 03/27/1991 | EP0419330A2 Method for the preparation of an alkynyl compound |
| 03/27/1991 | EP0419077A2 Synthesis of low molecular weight ethylene propylene glycol ethers via olefin addition to the corresponding glycol |
| 03/27/1991 | CN2073877U Production device for cyclic absorption method |
| 03/26/1991 | US5003124 Oligomerization process |
| 03/26/1991 | US5003114 Catalysis with calcined germanozeosilite mfi zeolite; reacting with hydrogen peroxide |
| 03/26/1991 | US5003112 Tertiary amyl methyl ether from C-5 olefin streams |
| 03/21/1991 | WO1991003456A2 Process for preparing salt-free esters of fatty acids with oligoglycerins or with addition reaction products of ethylene oxide and/or propylene oxide with oligoglycerins |
| 03/21/1991 | WO1990015043A3 Perfluorovinyl compounds |
| 03/20/1991 | EP0417407A1 Shaped bodies of macroporous ion exchanger resins and their use |
| 03/20/1991 | EP0417240A1 Process for reducing propenyl ether concentration in hydroxy-functional polyether compounds. |
| 03/20/1991 | EP0414800A4 Olefins interconversion and etherification process |
| 03/19/1991 | US5001294 Synthesis of diaryl alkenes |
| 03/19/1991 | US5001209 Non-linear optical active diols and polyurethanes prepared therefrom |
| 03/19/1991 | US5000879 Melting point enhancement of partially brominated diphenyl oxide mixtures |
| 03/19/1991 | US5000864 Perfluoropolyethers having antirust properties, useful as components or additives for lubricating oils and greases |
| 03/19/1991 | CA1281743C Process for preparing ethers |
| 03/13/1991 | EP0416946A2 Optically active naphthalene derivative, process for preparation thereof, liquid crystal composition containing the same as effective component, and liquid crystal element using the same |
| 03/13/1991 | EP0416261A1 Method of making ketals |
| 03/13/1991 | EP0416095A1 Novel integrated separation method for di-isopropyl ether and methyl tertiary alkyl ether processes |
| 03/13/1991 | EP0416069A1 New leucotriene b 4 derivatives, a method of preparing them, and their use as drugs. |
| 03/13/1991 | EP0415982A1 Method of preparing aromatic ethers from iodoaromatic compounds. |
| 03/13/1991 | EP0289509B1 Basic metal salts having improved color and stability and vinyl halide polymers containing same |
| 03/12/1991 | CA1281336C Method of preparing acetal or ketal |
| 03/12/1991 | CA1281306C Process for the fluorination in liquid phase of unsaturated compounds |
| 03/07/1991 | DE3928397A1 Verfahren zur herstellung von salzfreien estern von fettsaeuren mit oligoglycerinen bzw. mit anlagerungsprodukten von ethylenoxid und/oder propylenoxid an oligoglycerine Process for the preparation of salt-free esters of fatty acids with oligoglycerols or with plant-addition products of ethylene oxide and / or propylene oxide to oligoglycerols |
| 03/06/1991 | EP0415729A2 Vinylphenyl compound, process for the production thereof, polymerizable composition containing same, and crosslinked polymer formed therefrom |
| 03/06/1991 | EP0415524A1 Process for the production of 2-halomethyl-6-methoxy naphthalene |
| 03/06/1991 | EP0415334A1 Process for separation of enol ethers from mixtures thereof with alcohols |
| 03/06/1991 | EP0415220A2 Chiral doping agents for liquid crystals |
| 03/06/1991 | EP0414800A1 Olefins interconversion and etherification process |
| 03/06/1991 | EP0219553B1 Process for preparing 3-phenoxybenzyl 2-(4-alkoxyphenyl)-2-methylpropyl ethers |
| 03/05/1991 | US4997989 Chemical intermediates for fungicides |
| 03/05/1991 | CA1281039C Process for the preparation of decabromodiphenyl ether |
| 03/01/1991 | CA2024349A1 Process for separating off enol ethers from reaction mixtures containing alcohols |
| 03/01/1991 | CA2024187A1 Vinylphenyl compound, process for the production thereof, polymerizable composition containing same, and crosslinked polymer formed therefrom |
| 02/27/1991 | WO1991002712A1 Method for preparing ether carboxylic acids from carbohydrates and their derivatives and use thereof |
| 02/27/1991 | CA2065312A1 Method for preparing ether carboxylic acids from carbohydrates and their derivatives and use thereof |
| 02/26/1991 | US4996375 Vitamin E intermediates and a process for their manufacture and conversion into Vitamin E |
| 02/26/1991 | US4996371 Method for fluorodecarboxylation |
| 02/26/1991 | US4996370 Monomers |
| 02/26/1991 | US4996368 Process for the purification and stabilization of perfluoropolyethers |
| 02/26/1991 | US4996364 Use of alkaline earth salts of polycarboxylic acid monoesters as alkoxylation catalysts |
| 02/26/1991 | US4996320 Thyroid inhibitors |
| 02/26/1991 | US4995888 Separation of gas from solvent by membrane technology |
| 02/22/1991 | CA2023554A1 Synthesis of low molecular weight ethylene and propylene glycol ethers via olefin addition to the corresponding glycol |
| 02/19/1991 | US4994627 Treating with basic styrene-divinylbenzene ion exchange resin |
| 02/19/1991 | US4994626 Method for the preparation of methyl ethers of polyether polyols employing dimethylsulfate as a methylating agent |
| 02/19/1991 | US4994601 Herbicidal α-(5-aryloxy-naphthalen-1-yl-oxy)-propionic acid derivatives |
| 02/19/1991 | US4994486 Dopaminergic compounds |
| 02/19/1991 | CA1280447C Tertiary olefin process |
| 02/19/1991 | CA1280441C Meta-substituted dioxa-alkane carboxylic acids, esters, amides and salts of diphenyl ethers |
| 02/12/1991 | US4992609 Telomerization catalysts |
| 02/12/1991 | US4992595 Poly(alkoxy ether) mixed formals |
| 02/12/1991 | US4992594 Process for the preparation of polyglycerols |
| 02/12/1991 | US4992593 Partially fluorinated diphenyl ethers, processes for their preparation and their use |
| 02/12/1991 | US4992592 Fluoromalonaldehyde acetals from reaction of alcohol and acid |
| 02/12/1991 | US4992571 Method for making octyloxy substituted diphenyl iodonium hexafluoro metalloid salts |
| 02/12/1991 | US4992475 Used for AIDS |
| 02/12/1991 | CA1280121C Flow reactor system |
| 02/06/1991 | EP0411019A1 Etherification of extracted crude methanol and conversion of raffinate |
| 02/06/1991 | CN1048987A Catalytic distillation column |
| 02/05/1991 | US4990712 Integrated cracking, etherification and olefin upgrading process |
| 02/05/1991 | US4990677 Fungicidal and plant growth-regulating azolylmethyl-cyclopropyl derivatives |
| 02/05/1991 | US4990647 Catalytic coupling of two different halogenaromatics |
| 02/05/1991 | US4990637 Chemical intermediates |
| 02/05/1991 | US4990633 Fluorinated bisaryloxy-substituted alkenes, process for their preparation and their use |
| 02/03/1991 | WO1991001805A1 Liquid compositions and supported perfluorinated ion-exchange polymers |
| 02/03/1991 | CA2064187A1 Liquid compositions and supported perfluorinated ion-exchange polymers |
| 01/30/1991 | EP0410689A1 Process for producing alkyl tertiary-alkyl ether and C5+ gasoline boiling range hydrocarbons |
| 01/30/1991 | EP0410380A2 Novel process for the synthesis of 2-fluoro-1-olefins |
| 01/30/1991 | EP0410379A2 Pharmaceutically active 3-aryl and 3-heteroaryl-2-fluoro-1-olefins |
| 01/30/1991 | EP0409855A1 Extraction of crude methanol and conversion of raffinate |
| 01/30/1991 | EP0216785B1 Indene analogs of mevalonolactone and derivatives thereof |
| 01/30/1991 | CA2022103A1 Process for the preparation of ketals |
| 01/29/1991 | US4988826 Process for intermediates for insecticidal compounds |
| 01/29/1991 | US4988819 1,2,4-triazolemethyl ketones as chemical intermediates for plant growth regulators or fungicides |
| 01/29/1991 | US4988366 High conversion TAME and MTBE production process |
| 01/29/1991 | CA2022308A1 Process and apparatus for the production of ether-rich fuel |
| 01/29/1991 | CA2022188A1 Process for producing alkyl tertiary-alkyl ethers and c5+gasoline boiling range hydrocarbon |
| 01/26/1991 | CA2021521A1 Process for the synthesis of 2-fluoro-1-olefins |
| 01/23/1991 | EP0409086A1 One-step liquid phase process for dimethyl ether synthesis |
| 01/23/1991 | EP0409049A2 Method for the stereoselective production of Z-1,2-diaryl-alkyl-chlorides and their conversion to azolylmethyloxiranes as well as intermediates |