Patents
Sitemap › C07 - Organic chemistry › C07C - Acyclic or carbocyclic compounds › C07C 41 - Preparation of ethers; Preparation of compounds having groups, groups or groups
Patents for C07C 41 - Preparation of ethers; Preparation of compounds having groups, groups or groups (17,242)
12/1993
12/08/1993CN1079244A Composition and method for producing a multiple boiling point ether gasoline component
12/08/1993CN1079215A Morpholinyl derivatives of doxorubicin and process for their preparation
12/08/1993CN1022990C Process for preparing calcium based catalysts used for alkoxylation process
12/07/1993US5268515 Catalytic hydration of prop(ane and ene); heat treatment, pressurization
12/07/1993US5268511 Production of trifluorovinyl ethers
12/07/1993US5268510 Adjusting pH; steam stripping
12/07/1993US5268491 Process for the dehalogenation of naphthalene derivatives
12/07/1993CA1325012C Process for preparing perfluoroethers by fluorination with elemental fluorine
12/03/1993CA2097090A1 Process for the production of tertiary alkyl ether rich fcc gasoline
12/01/1993EP0571793A1 Hexafluoropropylene oxide oligoether derivative and process for the manufacture thereof
11/1993
11/30/1993CA2061800C Integrated process for producing enthanol, methanol and butyl ethers
11/30/1993CA1324756C Butylated hydroxyanisoles for the treatment of retro-viral diseases, as retro-virus infectivity modifying agents and as anti-infective products
11/25/1993WO1993023163A1 Acid catalysts
11/24/1993EP0570719A1 Process for producing acetaldehyde dimethylacetal
11/24/1993EP0415982B1 Method of preparing aromatic ethers from iodoaromatic compounds
11/23/1993US5264635 Selective cracking and etherification of olefins
11/18/1993DE4215558A1 Saure Katalysatoren Acid catalysts
11/16/1993US5262576 Reaction of propylene and benzene to form cumene
11/16/1993US5262556 Process for the reaction of halogenated aromatics with electrophiles
11/16/1993CA1324389C Process for preparing chf_ochfcf_ and chf_ochc1cf_ and novel intermediate compounds employed therein
11/11/1993WO1993022266A1 Alkoxylation process
11/11/1993WO1993022265A1 Production of bis(fluoromethyl)ether and difluoromethane
11/11/1993WO1993022264A1 Process of preparing an isopropanol and diisopropyl ether oxygenate motor fuel additive
11/11/1993DE4214847A1 2,2'-Di:chloro-di:methyl formal prodn. in high purity - by adding para-formaldehyde to excess 2-chloro-ethanol and distn., useful in high grade liquid polysulphide prodn.
11/11/1993CA2134210A1 Alkoxylation process
11/11/1993CA2134076A1 Production of bis(fluoromethyl) ether and difluoromethane
11/10/1993EP0569331A2 Process for the preparation of addition products
11/10/1993EP0569168A2 Synthesis of alkyl tert-alkyl ether using haloacid-modified clay catalysts
11/09/1993US5260493 Etherification
11/09/1993CA1324142C Quinolinyl ether or thioether tetrazoles as agents for the treatment of hypersensitive ailments
11/09/1993CA1324135C Perfluoro(cycloaliphatic methyleneoxyalkylene) carbonyl fluorides and derivatives thereof
11/05/1993CA2078484A1 One step synthesis of methyl t-butyl ether from t-butanol using haloacid-modified clay catalysts
11/03/1993EP0567848A1 Process for the alpha-chlorination of arylethern
11/03/1993EP0567847A1 Halogenation process in advantageous solvents
11/02/1993US5258560 Etherification of C5 -plus olefins by catalytic distillation
11/02/1993US5258554 Reaction of benzyl alcohol and p-chlorophenol, acid catalyst, selectivity
11/02/1993US5258529 Process for producing propargylcarbinol compounds
10/1993
10/28/1993DE4213642A1 Per:fluoro polyether(s) catalytic purificn. and stabilisation for high yield - by passing per:fluoro polyether gas above copper-magnesium-silicate catalyst and collecting in aq. alkali hydroxide soln. for fluorinated by=product removal
10/26/1993US5256828 Selective catalyzing an alkylene glycol with ethylene oxide in the presence of solid sintered oxide consisting of alkali, alkali earth metal or element of group III and zeolites
10/26/1993US5256333 Stabilized polyether polyol and polyurethane foam obtained therefrom
10/26/1993CA1323724C Liquid crystalline polyesters
10/24/1993CA2094465A1 Cycloalkane derivatives
10/20/1993EP0566371A2 Process for converting dimethyl ether to ethylidene diacetate
10/20/1993EP0566370A2 Integrated process for synthesizing oxygenated acetyl compounds from synthesis gas via dimethyl ether
10/20/1993EP0565975A2 Process for the preparation of isoprenoid derivatives
10/20/1993CN1022490C Liquid crystal mixture
10/19/1993US5254782 Reacting conjugated diene with compound containing active hydrogen in liquid phase in presence of group 8 compound catalst and promoter
10/19/1993US5254764 Integrated process for producing iso-butene and alkyl tert-butyl ethers
10/19/1993US5254752 Preparation of 4-halobenzyl alcohols
10/19/1993US5254749 Dehydration condensation of pentaerythritol in presence of acid catalyst
10/19/1993US5254748 Joining isoolefin production and ether production by reacting a produced isoolefin with a primary alcohol; etherification
10/19/1993US5254746 Hydroxylation of phenols/phenol ethers
10/19/1993US5254744 Preparation and purification of poly(tetramethylene ether) formal glycols and poly(oxybutylene formal) glycols
10/19/1993US5254732 Stable electrophilic fluorinating agents
10/19/1993US5254596 Reacting synthesis gas with heating and pressurization using titanium-zinc oxide catalyst
10/19/1993US5254527 Optically active herbicidal ethyl-2-(4-(6-chloro-benzoxazol-2-yloxy)-phenoxy)-propionate
10/16/1993CA2093989A1 Reagent and catalytic process for clearing a protected function
10/14/1993WO1993020085A1 Production of trifluorovinyl ethers
10/14/1993WO1993020032A1 Two stage production of ether from tertiary alcohol
10/12/1993US5252610 Aromatic compounds and their compositions for the control of insect pests
10/05/1993US5250743 Method of intercoversion of enantiomers of acyclic 1,2-dihydroxy-3-alkenes
10/05/1993US5250742 Bis/propargyloxyphenyl/isopropyl cyclohexanes for impregnation of inorganic fibers before polymerizing to hydrophobic thermosetting resins
10/05/1993US5250715 Prostaglandin intermediates
10/05/1993US5250574 Halogen substituted phenoxy phenols
10/05/1993US5250156 Heteroazeotropic distillation with water as entrainer using two distillation columns connected overhead to decanter
10/05/1993CA1322767C Process for the production of pure dimethylether
10/05/1993CA1322766C Etherification process
10/05/1993CA1322764C Dehydration of organic oxygenates
10/05/1993CA1322744C Alkylation of polycyclic aromatic compounds to alkylates enriched in the para-substituted isomers
09/1993
09/30/1993WO1993019032A1 Process for preparing methyl ethers
09/30/1993WO1993019031A1 Process and apparatus for preparing tertiary alkyl ethers
09/30/1993DE4209358A1 Polyether alcohol(s) prodn. based on solid or highly viscous starters - by reacting with alkylene oxide in presence of basic catalyst, hydrogen functional co-initiator, and aliphatic amine to suppress side reactions
09/29/1993EP0562858A1 Vapor phase chlorination of difluoromethyl methyl ether and fluorination of the chlorinated products
09/29/1993EP0562530A1 1,3-Cyclobutanedione bis-ketals, process for their preparation and their use
09/29/1993EP0561779A1 Process for producing 1-octene.
09/29/1993EP0308438B1 Liquid crystal phase containing tolanes
09/28/1993US5248837 Method for controlling catalytic distillation etherifications
09/28/1993US5248836 Etherification of isobutene with ethanol in the presence of an acid catalyst
09/28/1993US5248835 Method of producing a monoalkylether of a dihydric phenol compound
09/28/1993US5248833 Process for purifying polyols made with double metal cyanide catalysts
09/28/1993US5248832 Reduction of alkyl ester of trifluoroacetic acid with alkali metal borohydride
09/25/1993CA2092353A1 1,3-cyclobutanedione-bisketals, process for their production and their use
09/22/1993CN1076379A A distilling process and plant of catalytic reaction
09/15/1993EP0560057A1 Process for the preparation of highly pure dimethyl ether
09/14/1993US5245087 Etherification process
09/14/1993US5245086 Hydroxylation of phenols/phenol ethers
09/14/1993US5245072 Oligomerization of propylene and butylenes, hydroformylation, esterification
09/14/1993US5244929 Catalysts
09/09/1993DE4215570A1 Ether-rich additive prepn. for petrol - by treating liq. hydrocarbon with prim. alcohol
09/08/1993CN1075901A Composite phase transfer catalyst, its preparation and use
09/07/1993US5243116 Acidic mordenite zeolite catalyst
09/07/1993US5243110 Dehydrochlorination of 1,1-bis(r-phenyl)-2,2,2-trichloroethanes
09/07/1993US5243102 Etherification of C5 -plus olefins by sequential catalytic distillation
09/07/1993US5243097 Intermediates for vitamins A & E
09/07/1993US5243091 Method for the manufacture and recovery of methyl tertiary butyl ether
09/07/1993US5243090 Acid catalysts of metallosilicates
09/07/1993US5243088 1-monodebromination of dibromonaphthalene compounds
09/07/1993US5243086 Process for the preparation of diglycerol and/or polyglycerol
09/02/1993WO1993016976A1 Process for recycling polymers having repeating ether linkages
09/02/1993WO1993016969A1 Polyfluoroalkylation of aromatic compounds
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