Patents
Patents for C07D 323 - Heterocyclic compounds containing more than two oxygen atoms as the only ring hetero atoms (1,581)
01/1998
01/07/1998CN1169725A Process for trioxane of high purity
12/1997
12/29/1997EP0813550A1 Cyclic ketone peroxides as polymer initiators
12/09/1997US5696254 Processes for the diastereoselective synthesis of nucleoside analogues
12/02/1997US5693787 Stereospecific
11/1997
11/27/1997WO1997044310A1 Novel phenol compounds and use thereof
11/05/1997EP0618892B1 Polymeric optical amplifier doped with lanthanide
10/1997
10/29/1997EP0802898A1 Organic liquid electrolytes and plasticizers
10/15/1997CN1162309A Process for producing trioxane
10/02/1997DE19700146A1 Fragmented fullerene cage molecules used for e.g. biomedical applications, fire quenching, explosives or fuels
10/01/1997EP0695304B1 Calix[4]arene crown ethers, method for preparing same, and use thereof for the selective extraction of caesium and actinides
09/1997
09/23/1997CA2069024C Processes for the diastereoselective synthesis of nucleosides
09/02/1997US5663320 Processes for the diastereoselective separation of nucleoside analogue synthetic intermediates
08/1997
08/21/1997WO1997030042A1 Polyester cyclic compounds, their complexes and bonded bodies
08/13/1997EP0789024A1 Process for producing trioxane
08/12/1997US5657156 Waveguides containing electrically neutral encapsulated lanthanide complexes
08/06/1997CN1035555C Process for diastereoselective synthesis of nucleosides
07/1997
07/15/1997CA2069063C Processes for the diastereoselective synthesis of nucleosides
07/02/1997CN1153514A Cyclic ketone peroxide formulations
06/1997
06/24/1997US5641804 Produced by cultivating penicillium fungus; controlling plant pathogens
05/1997
05/28/1997CN1150590A Process for producing methaldehyde
05/14/1997EP0772609A1 Cyclic ketone peroxide formulations
05/02/1997EP0733050A4 Process for the production of trioxane from formaldehyde
04/1997
04/17/1997DE19537837A1 Preparation of cyclic carboxylic acid alkoxylate from carboxylic acid anhydride and alkylene oxide or alkylene diol
03/1997
03/26/1997CN1145901A Method for separating trioxane from aqueous mixture
03/19/1997EP0525100B1 Method for liquid chromatographic extraction of strontium from acid solutions
03/04/1997US5608058 Processing for purifying crown compounds
01/1997
01/30/1997WO1997003105A1 Preparation of cyclic oligomers of substituted cyclic ethers
01/28/1997CA2065698C 14-crown-4-ether derivatives
01/22/1997EP0754689A1 Process for the separation of trioxane from an aqueous mixture
01/20/1997CA2181528A1 Process for removing trioxane from an aqueous mixture
12/1996
12/31/1996US5589493 Anilide derivatives and their use for combating botrytis
12/19/1996WO1996040968A1 Recombinant production of novel polyketides
12/19/1996CA2224104A1 Recombinant production of novel polyketides
12/12/1996WO1996039402A1 Chemical complexes
12/12/1996WO1996039393A1 Method for preparing n, n'-disubstitued cyclic ureas
12/12/1996CA2222530A1 Chemical complexes
12/12/1996CA2222132A1 Method for preparing n,n'-disubstitued cyclic ureas
12/03/1996US5581398 Present in the form of a complex wherein the lanthanide ion is encapsulated by a host molecule
11/1996
11/27/1996CN1136812A Process for production of trioxane from formaldehyde
10/1996
10/30/1996EP0739889A1 Process for the continuous production of macrocyclic compounds
10/24/1996WO1996033188A1 Process for preparing trioxane
10/02/1996EP0734406A1 Polyglycerol production
09/1996
09/25/1996EP0733050A1 Process for the production of trioxane from formaldehyde
09/24/1996US5559145 Treatment of malaria
09/17/1996US5556988 Anilide derivatives and their use for combating botrytis
09/12/1996WO1996027620A1 Cyclic ketone peroxides as polymer initiators
09/11/1996CN1130629A Natural circulation reactor and use
08/1996
08/14/1996EP0725780A1 Stabilization of cyclic acetals
08/01/1996WO1996022986A1 Process for purifiyng trioxane
07/1996
07/18/1996WO1996021639A1 Organic liquid electrolyte plasticizer
07/18/1996CA2210126A1 Organic liquid electrolyte plasticizer
07/02/1996US5532356 Method for preparing N,N'-disubstituted cyclic ureas
06/1996
06/12/1996EP0725780A4 Stabilization of cyclic acetals
06/04/1996US5523419 Process for separating trioxane from an aqueous mixture
05/1996
05/17/1996WO1996014313A1 PROCESS FOR THE PREPARATION OF CIS-SYN-CIS-4,4'(5')-[DI-t-BUTYLDICYCLOHEXANO]-18-CROWN-6
05/14/1996US5516566 Cyclic oligomers for production of linear polyketones, polyphthalazines and polyisoquinolines
05/09/1996WO1996013496A1 Process for producing trioxane
05/07/1996US5514668 Crown ether attached to polysaccharide, demetallization, removal of viruses, ammonia, amines
04/1996
04/16/1996US5508449 Gas phase reaction of formaldehyde using 11-molybdo-1-vanadophosphoric acid catalyst
04/16/1996US5508448 Process for the preparation of trioxane
04/03/1996EP0704442A2 Natural circulation reactor and use
02/1996
02/27/1996US5495050 In presence of activated clay
02/27/1996US5494988 Free radical initiators as monomers; crosslinking unsaturated polyesters; addition, graft and block polymerization; compatibilizing blends
02/27/1996CA1338083C Ozonides of terpenes and their medical uses
02/08/1996WO1996003397A1 Cyclic ketone peroxide formulations
02/07/1996EP0695304A1 Calix 4 arene crown ethers, method for preparing same, and use thereof for the selective extraction of caesium and actinides
02/07/1996CN1116204A Processes for the diastereoselective synthesis of nucleosides
02/07/1996CN1030914C Preparing method of 2,4,6-triethyl propyl-1,3,5-oxane
02/06/1996US5489699 Unsaturated peroxide compositions, polymeric-peroxides derived therefrom and their uses
01/1996
01/17/1996EP0692481A1 Process for producing trioxane
01/11/1996WO1996000728A1 Processes and intermediates for the preparation of cyclic urea hiv protease inhibitors
01/10/1996EP0691338A1 Process for the preparation of trioxane
01/02/1996US5480897 Anilide derivatives and their use for combating botrytis
12/1995
12/26/1995US5478953 Catalytic hydrogenation of 4,4'(5')-(di-t-butyldibenzo)-18-crown-6 in an alcohol solvent with a carboxylic acid or anhydride
12/20/1995EP0687677A1 Stabilization of precursors for thin film deposition
12/12/1995US5475072 Unsaturated peroxide compositions, polymeric-peroxides derived therefrom and their uses
11/1995
11/29/1995EP0555472B1 Process for ozonizing unsaturated fatty acid or lower alkyl ester thereof and oxidative decomposition of the resulting ozonide
11/14/1995US5466797 Intermediates for the preparation of cyclic urea
11/08/1995EP0680959A1 Process for the separation of formaldehyde and trioxane
10/1995
10/10/1995US5457215 Reaction of perfluoroolefins with bis(silyl) ethers to produce fluorinated compounds
10/10/1995US5457162 Catalyst for addition polymerization, curing and crosslinking
09/1995
09/05/1995US5447709 Heating sources of tetravalent silicon, trivalent aluminum, hydroxide ion, and sodium complex of heterocyclic compound under autogeneous pressure
08/1995
08/16/1995EP0667339A1 Novel unsaturated peroxides, polymeric derived therefrom and their uses
08/10/1995CA2132563A1 Unsaturated peroxide compositions, polymeric-peroxides derived therefrom and their use
08/03/1995WO1995020586A1 Process for producing trioxane
07/1995
07/05/1995EP0660831A1 A fungicidal compound
06/1995
06/22/1995WO1995016723A1 Polyglycerol production
06/21/1995EP0658534A1 Depolymerization of chloroaldehyde cyclic trimers
06/15/1995WO1995015960A1 Process for the production of trioxane from formaldehyde
06/15/1995CA2176581A1 Process for the production of trioxane from formaldehyde
05/1995
05/31/1995EP0590031B1 Perfluoro cyclic polyethers useful as lubricants and heat transfer fluids
05/16/1995US5416226 Trimerization with tin, zinc, zeolite or Lewis acid catalyst
05/11/1995DE4337706A1 Process for the preparation of trioxane
05/09/1995US5414139 Process for the manufacture of monochloroacetaldehyde trimer and chloral
05/04/1995WO1995011892A1 Stabilization of cyclic acetals
05/02/1995US5412129 Stabilization of precursors for thin film deposition
04/1995
04/11/1995US5405956 Cyclic oligomers for production of linear polyketones, polyphthalazines and polyisoquinolines
04/11/1995US5405552 Modified polysugar as the alignment layer for liquid-crystal displays
03/1995
03/29/1995EP0644716A1 Medical uses of trioxolane and diperoxide compounds
03/28/1995US5401859 Process for the preparation of pure trioxane
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