| Patents for C07C 41 - Preparation of ethers; Preparation of compounds having groups, groups or groups (17,242) |
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| 01/24/1998 | CA2211327A1 Process for preparing alkyl tert-butyl ethers and di-n-butene from field butanes |
| 01/24/1998 | CA2211269A1 Process for preparing alkyl tert-butyl ethers and di-n-butene from field butanes |
| 01/21/1998 | EP0733032A4 Alkoxylation process |
| 01/21/1998 | CN1171125A Process for preparing allyl ether, thioether and amine compounds |
| 01/21/1998 | CN1171124A Process for preparing epoxy compounds |
| 01/21/1998 | CN1037098C Pesticidal fluoroolefines |
| 01/20/1998 | US5710350 Process for the production of diglycerol |
| 01/20/1998 | US5710347 Crystallization |
| 01/20/1998 | US5710346 2,2-bis(3,5-disubstituted-4-hydroxyphenyl) propane derivative, process for production thereof, and process for producing pyrogallol using said derivative |
| 01/20/1998 | US5710345 Floorinated polymers and copolymers containing cyclic structures |
| 01/20/1998 | US5710317 Preparation of difluoroacetic acid fluoride and difluoroacetic acid esters |
| 01/14/1998 | EP0817764A1 Preparation of cis-4-o-protected-2-cyclopentenol derivatives |
| 01/14/1998 | EP0626938B1 Process for recycling polymers having repeating ether linkages |
| 01/14/1998 | CN1170373A Sol-gel derived porous microcomposite of perfluorinated ion-exchange polymer and metal oxide for olefin isomerization |
| 01/14/1998 | CN1169888A Catalyst for preparation of dimethyl ether, preparation thereof and preparation of dimethyl ether |
| 01/07/1998 | EP0816320A1 Bis-ethers containing a 2,2'-biaryl group and process for their preparation |
| 01/07/1998 | EP0816314A1 Process for the separation of mixtures of dimethyl ether and chloromethane |
| 01/07/1998 | EP0816313A1 Process for the preparation and separation of a mixture of dimethyl ether and chloromethane using methanol as the extractant |
| 01/07/1998 | EP0816312A1 Process for the preparation and separation of a mixture of dimethyl ether and chloromethan using water as the extractant |
| 01/07/1998 | EP0815068A1 Dimethyl ether production and recovery from methanol |
| 01/07/1998 | EP0815067A2 Process for the alkoxylation of fluorinated alcohols |
| 01/07/1998 | CN1169415A Process for preparation and fractionation of mixture of dimethyl ether and chloromethane with methanol as extractant |
| 01/07/1998 | CN1169414A Process for preparation and fractionation of mixture of dimethyl ether and chloromethane with water as extractant |
| 01/06/1998 | US5705712 Integrated process for producing diisopropyl ether, an isopropyl tertiary alkyl ether and isopropyl alcohol |
| 01/06/1998 | US5705711 Etherification of tert-butyl alcohol with methanol and distillation |
| 01/06/1998 | US5705710 Process for the synthesis of hexafluoroisopropyl ethers |
| 01/06/1998 | US5705707 Preparation of n-butyraldehyde and/or n-butanol |
| 01/06/1998 | CA2160686C Formylation process for aromatic aldehydes |
| 01/06/1998 | CA2029509C Method for the preparation of methyl ethers of polyether polyols employing dimethylsulfate as a methylating agent |
| 01/02/1998 | DE19727042A1 New fluorinated aromatic vinyl ether compounds for preparing fluoroelastomers |
| 12/31/1997 | CN1168887A Process for prepn. of 5-bromo-2-fluorobenzeneboronic acid |
| 12/31/1997 | CN1036846C Method for preparing diethers |
| 12/30/1997 | US5703269 Process for preparing aromatic olefins |
| 12/30/1997 | CA1339611C Cyclopentane derivatives |
| 12/29/1997 | EP0734407B1 Process for purifying polyols |
| 12/29/1997 | EP0701985B1 Method of purifying fluoromethyl 1,1,1,3,3,3-hexafluoroisopropyl ether |
| 12/29/1997 | EP0647609B1 Process for producing fluorinated vinyl ether |
| 12/23/1997 | CA2046694C Super acidic catalysts for the synthesis of methyl-tert-butyl-ether |
| 12/17/1997 | EP0812847A1 Process for the preparation of 5-bromo-2-fluorobenzeneboronic acid |
| 12/17/1997 | EP0812308A1 Method for synthesis of aryl difluoromethyl ethers and the like |
| 12/17/1997 | EP0812305A1 Microporous amorphous mixed metal oxides for form-selective catalysis |
| 12/17/1997 | CN1167748A Process and intermediate compounds for preparation of pesticidal fluoroolefin compounds |
| 12/16/1997 | US5698747 Removal impurities using alkoxide |
| 12/16/1997 | US5698138 Also including water, nonfluorinated hydrocarbon, fluorinated surfactant; limpid or opalescent liquid having single phase indefinitely stable at certain temperature range |
| 12/11/1997 | WO1997046546A1 Process for preparing tetrahydrofuran from dialkoxybutenes |
| 12/11/1997 | DE19622497A1 Verfahren zur Herstellung von Tetrahydrofuran aus Dialkoxybutenen A process for the production of tetrahydrofuran from dialkoxybutenes |
| 12/11/1997 | CA2257928A1 Process for preparing tetrahydrofuran from dialkoxybutenes |
| 12/10/1997 | EP0811596A1 Process and intermediate compounds for the preparation of pesticidal fluoroolefin compounds |
| 12/10/1997 | CN1167103A Method for preparation of polylol allyl ether |
| 12/09/1997 | US5696308 Heating an alpha-fluoroether in the vapor phase with hydrogen fluoride in the presence of a catalyst |
| 12/09/1997 | CA2028626C Process for producing 5,6,7-trinor-4,8-inter-m-phenylene pgi2 derivatives |
| 12/04/1997 | WO1997045392A1 Process for removing nitrile in etherification process |
| 12/04/1997 | CA2255908A1 Process for removing nitrile in etherification process |
| 12/03/1997 | EP0810194A1 Process for preparing 3-oxyalkylpropan-1-ols |
| 12/03/1997 | EP0809618A1 Process for preparing olefins |
| 12/03/1997 | EP0664732B1 Support catalyst and use of same |
| 12/03/1997 | CN1166506A Process for preparing perfluoropolyethers with bromo- or iodo-containing end groups |
| 12/03/1997 | CN1166377A Phosphoric acid catalyst and its use |
| 12/03/1997 | CA2206620A1 Process and intermediate compounds for the preparation of pesticidal fluoroolefin compounds |
| 12/02/1997 | US5693870 Apparatus for producing alkylene glycols, alkyene glycols having higher primary hydroxyl content, method of producing glycols having higher primary hydroxyl content, method of producing acrylate esters |
| 11/30/1997 | CA2205823A1 Process for preparing 3-oxyalkylpropan-1-oles |
| 11/27/1997 | WO1997044303A1 Co-production of perfluoromethyl perfluorovinyl ether and perfluoroethyl perfluorovinyl ether |
| 11/27/1997 | WO1997044300A1 Process using cf2i2 and olefins for producing diiodo fluorocompounds, and products thereof |
| 11/25/1997 | US5691462 Stabilized vinyl ether composition |
| 11/18/1997 | US5689033 Solvent extraction, simplified process for production of methyl tert-butyl ether and tert-amyl methyl ether |
| 11/18/1997 | US5689015 Method for the production of ether and alkylate from a paraffin feedstock |
| 11/18/1997 | US5689014 Integrated process for producing diisopropyl ether and an isopropyl tertiary alkyl ether |
| 11/18/1997 | US5689013 Process for preparing tertiary alkyl ethers from an olefinic hydrocarbon feedstock |
| 11/13/1997 | WO1997042230A1 Rapid purification by polymer supported quench |
| 11/13/1997 | WO1997042158A1 Synthesis of a substituted cyclopentadiene compound |
| 11/13/1997 | CA2251700A1 Rapid purification by polymer supported quench |
| 11/12/1997 | EP0777527A4 Process for preparing alkoxylation catalysts and alkoxylation process |
| 11/11/1997 | US5686586 Polycyclic aromatic derivatives, process for preparing the same and pharmaceutical and cosmetic compositions containing the same |
| 11/11/1997 | US5686554 Process for the manufacture of paraformaldehyde |
| 11/11/1997 | US5686379 Alkoxylation catalyst, process for the preparation of the catalyst and process for preparing alkoxylate with the use of the catalyst |
| 11/11/1997 | CA1339539C Process for the preparation of halogenated polyethers |
| 11/11/1997 | CA1339538C Process for the preparation of fluorohalogenated ethers starting from fluorooxy-compounds and halogenated olefins |
| 11/06/1997 | WO1997041087A1 Process for the manufacture of hydroxycarbonyl compounds |
| 11/06/1997 | WO1997041086A1 Process for the manufacture of oxygenates |
| 11/06/1997 | CA2252703A1 Process for the manufacture of hydroxycarbonyl compounds |
| 11/06/1997 | CA2252546A1 Process for the manufacture of oxygenates |
| 11/05/1997 | EP0805132A1 Method of producing styrene derivatives |
| 11/04/1997 | US5684213 Dehydration of alkyl alcohols by distillation in the presence of zeolite catalyst |
| 11/04/1997 | US5684212 Nitrile removal process and etherification process with same |
| 11/04/1997 | US5684211 Method of purifying fluoromethyl-1,1,1,3,3,3-hexafluoroisopropyl ether |
| 11/04/1997 | US5684210 Method of purifying fluoromethyl-1,1,1,3,3,3, hexafluoroisopropyl ether |
| 11/04/1997 | US5683555 Working up reaction mixtures obtained in addition reactions with acetylene or propyne |
| 10/30/1997 | WO1997040004A1 2-hydroxy-5-alkyl-beta-methylstyrene and process of preparing hydroxyarylaldehydes therefrom |
| 10/30/1997 | WO1997039993A1 Process for making alkyl ether glycerols |
| 10/29/1997 | EP0803526A2 Process for preparing perfluoro-polyethers with bromo- or iodo-containing end groups |
| 10/29/1997 | EP0802895A1 Process for producing end-group-locked non-ionic tensides |
| 10/29/1997 | EP0802894A1 Process for preparing alkyl tertiary-alkyl ether |
| 10/27/1997 | CA2175125A1 Method of producing styrene derivatives |
| 10/23/1997 | WO1997038962A1 A process for the production of hydrofluoroethers |
| 10/23/1997 | CA2249231A1 A process for the production of hydrofluoroethers |
| 10/23/1997 | CA2203339A1 Process for preparing perfluoropolyethers with bromo- or iodo-containing end groups |
| 10/22/1997 | CN1162503A Use of catalysts based on catalyst supports containing silicon dioxide for catalytic reactions under hydrothermal conditions |
| 10/21/1997 | US5679879 Process for the production of substituted aromatic hydrocarbons from corresponding anilines by dediazoniation |
| 10/21/1997 | US5679872 From mixture of ether, alcohol and hydrocarbons |
| 10/21/1997 | US5679871 Reacting phenol or thiophenol with cyclic organic carbonate in presence of alkali metal and/or alkali metal alkoxide catalyst |