Patents
Patents for C07D 315 - Heterocyclic compounds containing rings having one oxygen atom as the only ring hetero atom according to more than one of groups (1,360)
02/1996
02/20/1996US5492942 Pyran derivative, photosensitive resin composition, and hologram recording medium using it
01/1996
01/16/1996US5484952 Process for the manufacture of alkyl ketene dimer
01/03/1996EP0689839A2 Use of inhibitors of adenosine triphosphatase for the manufacture of a medicament for the treatment of disorders anociated with beta-amyloid peptide
12/1995
12/31/1995CA2152765A1 Methods for treating a physiological disorder associated with beta amyloid peptide
12/27/1995EP0688322A1 Oxidation of ketones
12/26/1995US5478950 Reacting dicarboxylic acid(or anhyudride) with hydrogen in first catalytic bed, then reaction with primary amine or ammonia in second downstream catalytic bed
12/06/1995EP0685473A2 Benzoheterocyclic compounds, as antioxidants
11/1995
11/21/1995US5468881 Method of producing cis-whiskey lactone
10/1995
10/31/1995US5463085 Reacting diethyl methylmalonate with methacrolein in presence of L-proline lithium salt
10/03/1995CA1337204C Process for concentrating lactones, as well as the use of the concentrate thus obtained for flavouring foodstuffs
09/1995
09/26/1995US5453516 Furanones, pyrrolidones
09/20/1995EP0672039A1 PROCESS FOR THE PREPARATION OF -g(a)-ARYL--g(g)-BUTYROLACTONES.
09/13/1995EP0671380A1 Process for the catalytic splitting off of carboxylic ester and acyl groups from organic compounds
09/13/1995CN1108253A Process for producing gamma-butyrolactone
09/12/1995CA1336980C Process for the preparation of lactones
08/1995
08/24/1995WO1995022539A1 Process for the production of gamma-butyrolactone
07/1995
07/20/1995DE4401388A1 Gamma=deca-lactone prepn. with high stereospecificity
06/1995
06/20/1995US5426195 Process for the catalytic dehydrogenation of diols
05/1995
05/31/1995EP0654999A1 Use of inhibitors of vacuolar-type h?+ atpases
05/30/1995US5420306 Enantioselective hydrogenation of gamma-keto acid, ruthenium-phosphine catalyst
05/30/1995US5420273 Condensed heterocyclic compounds
05/26/1995WO1995014010A1 METHOD FOR PREPARING η-BUTYROLACTONE
05/16/1995US5416224 Reaction of acetyldihydro-2-(3H)-furanone with aldehyde and alkali metal hydroxide
05/02/1995US5412109 Process for preparing optically active 4-methyl-2-oxetanone
04/1995
04/19/1995EP0533936B1 Process for producing cis-whiskey-lactone
04/11/1995US5405974 Process for producing a lactone or an ester
03/1995
03/29/1995EP0645358A1 Method of selective catalytic oxidation of organic compounds
03/28/1995US5401857 Process for making γ-butyrolactones
03/21/1995US5399774 Process for the production of ketene dimers
03/18/1995CA2132065A1 Process for the selective catalytic oxidation of organic compounds
02/1995
02/21/1995US5391771 Hydrogenation of citric acid
02/15/1995EP0638565A1 Process for producing gamma-butyrolactone
02/15/1995CN1098711A Process for the manufacture of alkyl ketene dimer
02/11/1995CA2129709A1 Process for producing gamma-butyrolactone
12/1994
12/22/1994WO1994029294A1 Process for producing lactones and lactones obtained with this process
12/22/1994WO1994029258A1 Process for producing an omega-functionalized aliphatic carboxylic acid and intermediate products of said process
12/20/1994US5374744 Sex pheronome of Japanese beetle, cupreous chafers; oxidation, reduction, cleavage, cyclization, alkynylation, hydrolysis
12/20/1994US5374373 Ferroelectric liquid crystal device
12/14/1994EP0628552A1 Process for the catalytic dehydration of diols
12/07/1994EP0627426A1 Pyran derivative, photosensitive resin composition, and hologram recording medium using it
11/1994
11/23/1994EP0625142A1 Process for producing pyrrolidone and n-alkyl pyrrolidones.
11/17/1994EP0624579A1 Process for the manufacture of alkyl ketene dimer
10/1994
10/25/1994US5359081 Carbonylation of epoxides
09/1994
09/29/1994WO1994021624A1 Oxidation of ketones
09/29/1994CA2157385A1 Oxidation of ketones
09/21/1994EP0615520A1 Optically active lactones
09/13/1994US5347021 Process of vapor phase catalytic hydrogenation of maleic anhydride to gamma-butyrolactone in high conversion and high selectivity using an activated catalyst
08/1994
08/31/1994EP0612739A1 A process for the production of ketene dimers
08/09/1994US5336810 Hydrogenation of benzoic acid and catalyst suitable therefor
08/03/1994CN1025558C Method for reducing amount of polymer in reaction of dimerisation of ketene
06/1994
06/28/1994US5324720 Methods of achieving antitumor activity using 16-membered-macrolide-type compounds
06/22/1994EP0602515A1 Process for the preparation of 5-membered heterocycles
06/09/1994WO1994012487A1 PROCESS FOR THE PREPARATION OF α-ARYL-η-BUTYROLACTONES
06/09/1994CA2150948A1 Process for the preparation of alpha-aryl-gamma-butyrolactones
06/07/1994US5319111 Heating crude product of the hydrogenation of maleic acid or anhydride or succinc acid or anhydride containing 1,4-butanediol with a nonoxidizing acid catalyst
06/07/1994US5319108 Method for producing (R,Z)-5-tetradecen-4-olide
05/1994
05/10/1994US5310948 Cobalt catalyst and hydroxypyridone
05/10/1994US5310944 Caprolactone from cyclohexanone, organoarsinic acid catalyst that can be reused
04/1994
04/27/1994EP0593458A1 Process of vapor phase catalytic hydrogenation of maleic anhydride to gamma-butyrolactone in high conversion and high selectivity using an activated catalyst.
04/26/1994US5306834 Process for preparing optically active 4-methyl-2-oxetanone
04/26/1994US5306716 Methods of achieving antileukemia activity using 16-membered-macrolide-type compounds
04/14/1994WO1994007887A1 Optically active lactones
04/13/1994EP0591795A1 Process for hydrogenolysis of citric acid
04/05/1994US5300522 Condensed heterocyclic compounds and pharmaceutical use thereof
03/1994
03/15/1994CA1327812C Vapor-phase hydrogenation of maleic anhydride to tetrahydrofuran and gamma-butyrolactone
03/03/1994WO1994004161A1 Use of inhibitors of vacuolar-type h+ atpases
03/03/1994CA2142313A1 Use of inhibitors of vacuolar-type h atpases
03/02/1994EP0584408A2 Process for the preparation of gamma-butyrolactone
02/1994
02/23/1994CN1082540A Carbonylation of epoxides
01/1994
01/26/1994EP0580336A1 Process for preparing optically active 4-methyl-2-oxetanone
01/13/1994DE4222168A1 Fatty acid lactone prepn. under mild conditions - by heating unsatd. acid ester with tin halide acceptor, used e.g. as perfume, aroma, pheromone or intermediate
01/11/1994US5278321 Process for simultaneously producing lactone and aromatic carboxylic acid
01/05/1994EP0577206A2 Carbonylation of epoxides
01/04/1994US5276053 Dibenzothiopyranylamines
12/1993
12/08/1993EP0573087A2 Hydrogenation of benzoic acid and catalyst suitable therefor
11/1993
11/10/1993EP0569098A2 Conversion of cycloalkanone into lactone
10/1993
10/05/1993US5250707 Process for preparing ε-caprolactone
09/1993
09/30/1993WO1993018653A1 Methods of achieving antileukemia activity using 16-membered-macrolide-type compounds
09/30/1993WO1993018652A1 Methods of achieving antitumor activity using 16-membered-macrolide-type compounds
09/30/1993CA2132310A1 Methods of achieving antileukemia activity using 16-membered macrolide-type compounds
09/15/1993EP0559789A1 PROCESS FOR THE PREPARATION OF $g(a)-ALKYL LACTONES
08/1993
08/31/1993US5241101 Plant fungicides
08/12/1993DE4203527A1 Verfahren zur herstellung von pyrrolidon und n-alkylpyrrolidonen A process for preparing pyrrolidone and N-alkylpyrrolidones
08/08/1993WO1993016042A1 Process for producing pyrrolidone and n-alkyl pyrrolidones
07/1993
07/27/1993US5231192 Reacting an a-acyl lactone, an aldehyde and an alkali metal hydroxide; hydrogenation
06/1993
06/30/1993EP0548774A1 Process for producing a lactone or an ester
06/22/1993CA1319364C Fused heterocyclic compounds
06/15/1993US5219742 Method of producing gamma-hydroxydecanoic acid or its lactone by feeding a ricinoleic acid source to sp. odorus or rh. glutinis
06/02/1993CN1021049C Vapor-phase hydrogenation of maleic anhydride to tetrahydrofuran and gamma-butyrolactone
06/01/1993US5216177 Method of preparing trans-3,4-disubstituted-γ-lactones
05/1993
05/26/1993EP0543340A1 Process for preparing lactones
05/25/1993US5214163 Process for the preparation of 15-pentadecanolide or of mixtures rich in this macrolide
05/12/1993CN1071923A Process for preparing 6-caprolactone
05/11/1993US5210229 Process for the preparation of gamma-butyrolactone
04/1993
04/28/1993CN1071421A Catalysis process for preparation of tetrahydrofuran and r-butyrolactone using maleic anhydride
03/1993
03/31/1993EP0533936A1 Process for producing cis-whiskey-lactone
03/23/1993CA1314900C Preparation of .alpha.-substituted-.gamma.-butyrolactones
03/17/1993EP0531700A2 Pure diastereomere intermediates and their use in the preparation of (R)- or (S)-ketoprofen
03/15/1993EP0593458A4 Process of vapor phase catalytic hydrogenation of maleic anhydride to gamma-butyrolactone in high conversion and high selectivity using an activated catalyst.
02/1993
02/24/1993EP0528044A1 PROCESS FOR PRODUCING 4-SUBSTITUTED $g(g)-LACTONE, AND NOVEL SUBSTANCE
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