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)
10/1979
10/31/1979EP0004978A1 Use of 4,6,6-trimethyltetrahydropyran-2-one and a mixture thereof with 4,4,6-trimethyltetrahydropyran-2-one in a weight ratio of 60:40 as fragrances and fragrant compositions containing them
10/16/1979US4171313 Molybdenum and tungsten peroxo complexes useful as oxidation catalysts
10/16/1979CA1064520A1 Process for the manufacture of cyclohexane-1,3-diones and 6-alkyl-3,4-dihydro-2-pyranones
10/03/1979EP0004493A1 Ethers whose organic moieties have asymmetric atoms, methods for their preparation and their use for the resolution of alcohols, phenols or certain compounds with a lactone structure
09/1979
09/18/1979US4168272 Homologs of lasalocid A
09/11/1979US4167513 Synthesis of unsaturated esters and lactone from butadiene and carbon dioxide
08/1979
08/21/1979US4165321 Process for the production of heterocyclic compounds
08/14/1979CA1060461A1 Continuous process for producing gammabutyrolactone by catalytic hydrogenation of maleic anhydride
07/1979
07/10/1979US4160769 Hydrogen peroxide, selenium compound catalyst
07/03/1979US4159989 Process for preparing ethylene glycol diacylate
05/1979
05/22/1979US4155919 Process for the production of 1,4-butanediol and tetrahydrofuran
05/08/1979US4153616 Process for the preparation of alkenylated dicarboxylic acid lactones
04/1979
04/03/1979CA1051800A1 Homologs of antibiotic lasalocid a from streptomyces
02/1979
02/13/1979CA1048517A1 Process for making 4-butyrolactone
02/07/1979EP0000476A1 Process for the preparation of cyclopentadecanolide
02/06/1979US4138289 Asymmetric hydrogenation by microorganism, fermentation
10/1978
10/31/1978CA1041529A1 Process for the production of gamma-butyrolactone and novel catalyst therefor
10/10/1978US4119642 Butenolide synthesis via carbonylation of vinylmercurials in the presence of inorganic salts
09/1978
09/12/1978US4113742 Process for the preparation of alpha-pyrones
08/1978
08/08/1978US4105674 Copper, platinum or palladium
07/1978
07/11/1978US4100362 Oxidation process
06/1978
06/20/1978US4096156 Hydrogenation catalyst containing silver or gold and a platinum group metal
05/1978
05/30/1978US4092270 Catalyst for the production of 2,2-disubstituted propiolactones
05/23/1978US4091041 Preparation of 1,4-diols by hydrolysis-hydrogenation of 2-alkoxytetrahydrofurans
05/16/1978US4089869 By reacting omega-iodoperfluorocarboxylic acid derivative with fuming sulfuric acid
04/1978
04/11/1978US4083809 Hydrogenation catalyst and method of producing same
03/1978
03/28/1978US4081456 Bis-lactam derivatives
01/1978
01/17/1978US4069232 Reacting with carbon monoxide
12/1977
12/20/1977US4064144 Process for the preparation of trans-Δ9 -isoambrettolide
09/1977
09/13/1977US4048196 Manufacture of butanediol and/or tetrahydrofuran from maleic and/or succinic anhydride via γ- butyrolactone
08/1977
08/09/1977US4041049 Catalytic dehydration and cyclization and cyclization of 4-oxocarboxylic acids
07/1977
07/12/1977US4035389 Production of 2,2-disubstituted propiolactones
06/1977
06/21/1977US4031114 Alpha, beta-butenolide preparation
05/1977
05/24/1977US4025534 Continuous process for producing gamma-butyrolactone by catalytic hydrogenation of maleic anhydride
05/10/1977US4022822 Process for preparing sorbic acid
04/1977
04/19/1977US4018833 Preparing resorcinols from δ-ketocarboxylic acids or from their lactones
03/1977
03/29/1977US4014902 Intermediate in the process for the preparation of trans-Δ9 -isoambrettolide
03/22/1977US4013691 Process for the simultaneous manufacture of epsilon-caprolactones and carboxylic acids
03/08/1977US4011177 Chemicals and their use in perfumery
03/01/1977US4010170 Butenolide synthesis via carbonylation of vinylmercurials
02/1977
02/01/1977US4006109 Trimethyl nonene alcohols and perfume compositions
01/1977
01/04/1977US4001282 Process for producing gamma-butyrolactone
12/1976
12/28/1976US4000310 Pharmaceutical compositions containing 6-methyl-3,4-diphenyl-3,4,5,6-tetrahydro-2-pyrone or derivatives thereof
12/14/1976US3997537 Process of preparing 2-amino-4-hydroxy-5(and/or 6)-alkyl substituted pyrimidines
11/1976
11/30/1976US3994928 Process for the production of γ-butyrolactone
11/23/1976US3993771 Fungicides; alpha-benzylidine-gamma-butyrolactone
11/16/1976US3992417 Process for manufacture of gamma butyrolactones
11/02/1976US3989724 Tetrahydropyran-2-ols
09/1976
09/14/1976US3980670 Hydroformylation of carboxylic acid allyl esters in rhodium catalysts; oxidation
08/1976
08/17/1976US3975381 Process for preparing γ-lactone derivatives
06/1976
06/15/1976US3963757 Reacting water and a cyanide with haloalkanols, phosphine promoter
05/1976
05/18/1976US3957827 Hydrogenation of carboxylic acid anhydrides to lactones or esters by homogeneous catalysis
04/1976
04/27/1976US3953472 Distillation, alicyclic or aliphatic alcohols
04/20/1976US3952020 Lactone production
04/13/1976US3950361 With a solid alkaline earth metal hydroxide
04/06/1976US3948805 Catalysts for converting maleic anhydride to alpha-butyrolactone
03/1976
03/16/1976US3944572 Delta-caprolactone, cracking catalyst
01/1976
01/27/1976US3935235 Lactones
01/06/1976US3931237 Production of 2,2-disubstituted propiolactones
01/06/1976US3931236 Oxidation and dehydrohalogenation of halotetrahydropyrans
1 ... 4 5 6 7 8 9 10 11 12 13 14