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8877981 Integrated process for preparing acrolein and 3-methylmercaptopropionaldehyde  
A process to produce 3-methylmercaptopropionaldehyde is provided. The process comprises: A) oxidizing a mixture of propylene and inert diluent gases with air over a heterogeneous catalyst to...
8759592 Process for preparing methylmercaptopropionaldehyde  
A process for preparing methylmercaptopropionaldehyde in a single reaction unit, is provided. According to the preferred embodiment, the process comprises, simultaneously contacting a gaseous...
8735631 Method for manufacturing methylmercaptopropionaldehyde and methionine using renewable raw materials  
The present invention relates to a method for manufacturing methylmercaptopropionaldehyde (MMP) including at least the following steps: (a) dehydrating glycerol to acrolein from an aqueous...
8624066 Process for preparing methylmercaptopropionaldehyde  
A process for preparing methylmercaptopropionaldehyde in a single reaction unit, is provided. According to the preferred embodiment, the process comprises, simultaneously contacting a gaseous...
8367872 Close-bonded diffractive optical element, optical material used therefor, resin precursor, and resin precursor composition  
To obtain a close-contact multi-layer type diffractive optical element having a homogeneous high-refractive-index and low-dispersion resin layer, an acrylate-terminated oligomer, obtained by...
8334412 Process for preparing 3-(methylthio)propanal  
The present invention provides a process for preparing 3-(methylthio)propanal which can sufficiently decrease the production of high-boiling impurities as a by-product. The process comprises...
8216974 Fluorine-containing organosulfur compound and pesticidal composition comprising the same  
There is provided a fluorine-containing organosulfur compound having an excellent controlling effect on arthropod pests represented by the formula (I): wherein G represents an oxygen atom or a...
8173845 Process for producing 3-methylthiopropanal  
A process is provided capable of producing 3-methylthiopropanal with subgeneration of high-boiling impurities being favorably inhibited. The process for producing 3-methylthiopropanal, includes...
8101803 Process for the addition of thiolates to α,β-unsaturated carbonyl or sulfonyl compounds  
Alkylthio substituted aldehydes, ketones, esters and sulfones are prepared by reacting α,β-unsaturated carbonyl and sulfonyl compounds with a sodium or potassium thiolate in the presence of a...
7799953 Method for producing 3-methylthiopropanal  
A 3-methylthiopropanal is produced by a method comprising the step of supplying an acrolein and a methyl mercaptan together or sequentially with an acidic compound and a basic compound into a...
7790934 Catalysts and process for dehydrating glycerol  
A process for preparing acrolein from glycerol using an acidic solid-state catalyst which comprises tungsten compounds and further promoters.
7662891 Amine salt compound of carboxylic acid having thermal dissociation portion and compounding agent for rubber vulcanization and rubber composition containing the same  
To provide a compound which has a higher vulcanization efficiency and superior heat aging resistance compared to conventional compounding agents for rubber compositions and which is...
7504542 Preparation of α-hydroxy ketones via carbene-catalyzed umpolung reaction of aldehydes  
The present invention relates to the preparation of α-hydroxy ketones of the general formula I. In particular, the invention relates to novel imidazolinium carboxylate adducts and to a novel...
7476767 Alpha-hydroxy sulfonate aldehydes, germicidal compositions containing the alpha-hydroxy sulfonate aldehydes, or mixtures of alpha-hydroxy sulfonate aldehydes and phthalaldehydes, and methods of using the compounds or compositions for disinfection or sterilization  
Disclosed herein are α-Hydroxy sulfonate aldehydes and synthesis methods therefor. Germicidal compositions including the α-hydroxy sulfonate aldehydes, are also disclosed. In one aspect, a...
7402705 Production of 3- (alkylthio) propanal  
The invention relates to a process for the production of 3-(alkylthio)propanal from glycerol using catalysts.
7256315 Process for the production of 3-methylthiopropanal  
Process for the Production of 3-methylthiopropanal. A process for the production of 3-methylthiopropanal which reacting reaction medium comprising methyl mercaptan and acrolein in the presence of...
6924391 Alpha-amino,-thio,-oxo substituted ketones as phospholipase inhibitors  
Inhibitors of the cytosolic phospholypase A2 enzymes are provided which are of use in controlling a wide variety of inflammatory diseases. The inhibitors of the present invention have the general...
6713524 Reactive polymers  
The invention relates to novel reactive polymers of formula wherein the variables are as defined in the claims. The polymers of the invention are useful for the modification of material surfaces...
6465694 Method for preparation of polyethylene glycol aldehyde derivatives  
Aldehyde derivatives of polyethylene glycols and methods of making thereof are disclosed. These aldehyde derivatives can be used to make polyethylene glycol-hydrazines, polyethylene glycol-thiols,...
6379590 Method for making unsymmetrically substituted fluorenyl compounds for nonlinear optical applications  
A new method for producing unsymmetrically substituted fluorenyl compounds, one step of which is the preparation of 2,7-disubstituted fluoren-9-one derivatives via the nucleophilic substitution of...
6326519 Diallylic sulfides and processes for preparing the same  
Diallylic sulfides represented by Formula I ##STR1##wherein: R1 and R2 are independently chosen from the group consisting of --CHO, --CH2 Cl, --CH2 Br, --CH2 I, --CH2 OH, CH2 OSO2 CF3, --CH2 OSO2...
6225505 Trifluoro methylthiomethyl benzene derivatives and process for production same  
The present invention lies in a process for producing a trifluoromethylthiomethylbenzene derivative represented by the following general formula (2): ##STR1##(wherein R is a hydrogen atom, a...
6187963 Processes for the manufacture of acrolein derivatives  
Processes are disclosed for the conversion of propylene to an acrolein derivative by converting propylene to acrolein and converting acrolein to the acrolein derivative. The processes utilize...
6121496 Aromatic thioether acylation method  
The present invention relates to a process for the acylation of an aromatic thioether. In its preferred variant, the invention resides in a process for the condensation of acetic anhydride or...
6057481 Processes for the manufacture of methylmercaptopropanal  
Processes are disclosed for the conversion of propylene to methylmercaptopropanal by converting propylene to acrolein and converting acrolein to methylmercaptopropanal. The processes utilize...
6025526 Synthesis of substituted mercapto-benzaldehydes  
Disclosed is a composition of (1) a substituted benzaldehyde having the general formula ##STR1## where X is a leaving group in the ortho or para position, (2) a mercaptide having the general...
5973200 Process for the preparation of 2-hydroxy-4-(methylthio) butanoic acid or methionine by mercaptan addition  
A process for the free-radical addition of a mercaptan to a nonconjugated olefinic substrate having a terminal carbon-carbon double bond is disclosed. 2-Hydroxy-4-(ethylthio)butanoic acid (HMBA)...
5948936 Method for production of sulfide group-containing thiol compound  
A method for the production of a sulfide group-containing thiol compound which comprises causing alkylene sulfide to react with a thiol compound in the presence of at least one basic catalyst...
5912388 Preparation of aldehydes or ketones from alcohols  
A process for preparing an aldehyde or ketone comprising reacting a primary or secondary alcohol with oxygen in the presence of a base, a catalytic amount of a copper salt and a suitable lignad...
5897750 Separation of acetone from isopropanol-water mixtures by extractive distillation  
Acetone cannot be separated from a mixture of isopropanol and water because of the closeness of their boiling points. Acetone can be easily separated from isopropanol and water by extractive...
5866596 3,4-diaryloxazolone derivatives, their methods of preparation and their uses in therapeutics  
The present invention relates to the derivatives of formula: ##STR1## and to their use in therapeutics, especially as drugs with anti-inflammatory and analgesic properties.
5808164 Process for producing aromatic sulfides  
A process which can be used to produce an aromatic sulfide compound having the formula of (R4-n)(Xn)(W)Ar--S--R' is provided. The process comprises contacting, in the presence of a surfactant, a...
5663409 Process for the preparation of 3-(methylthio) propanal and 2-hydroxy-4-(methylthio) butanenitrile  
Catalytic processes for the preparation of 3-(methylthio)propanal and 2-hydroxy-4-(methylthio)butanenitrile using novel addition catalysts are disclosed. The novel addition catalysts include:...
5610198 Anti-mycobacterial compositions and their use for the treatment of tuberculosis and related diseases  
Compounds, pharmaceutical compositions, and methods for the treatment of mycobacterial diseases, such as tuberculosis and leprosy, are provided. Use of the compounds for promoting an antiseptic...
5534557 Onium salt, photopolymerization initiator, energy ray-curing composition containing the initiator, and cured product  
The composition of the present invention is excellent in compatibility, transparency and curability and give a cured coat of excellent gloss and of less smell, and cured products of excellent...
5510538 Process for the oxidation of primary and secondary alcohols to aldehydes and ketones and for the oxidation of 1,2-diols to α-ketols and α-diketones  
A process for the selective oxidation of a primary or secondary alcohol to an aldehyde or ketone and for the oxidation of a 1,2-diol to an α-ketol or α-diketone, which comprises contacting the...
5478959 Method for preparing 1,2-dithiins and precursors of 1,2-dithiins  
A method for preparing 1,4-(Z,Z)-disubstituted-1,4-disulfurated-1,3-butadienes is disclosed. The butadienes can be further elaborated to provide 3,6-unsymmetrically-substituted-1,2-dithiins. Also...
5427701 Substituted phenols as stabilizers  
Novel compositions are described which comprises an elastomer or a lubricant and at least one compound of the formulae I or II ##STR1## The symbols R1, R2, R3, Z1 and Z2 are as defined in claim...
5382686 Process for preparing nitrodiphenyl (thio) ethers  
Nitrodiphenyl(thio) ethers in which the nitro group is in the ortho- or para-position with respect to the ether oxygen or ether sulphur can be prepared from halonitrobenzones in which the nitro...
5347050 3-aminopropoxyphenyl derivatives, their preparation and pharmaceutical compositions containing them  
The compounds of formula I, ##STR1## wherein the substituents have various significances, and physiologically acceptable hydrolyzable derivatives thereof having the hydroxy group in the 2 position...
5321046 Hypocholesterolemic unsymmetrical dithiol ketals  
Disclosed herein are novel unsymmetrical dithiol ketals which are useful in the treatment or prevention of hypercholesterolemia, hyperlipoproteinemia, and atherosclerosis.
5298630 Processes for producing 2-substituted benzo[B]thiophene  
A 2-alkylthiobenzaldehyde of general formula (I) is reacted with a halo compound of general formula (II) to produce a 2-substituted benzo[b]thiophene of general formula (III): ##STR1## wherein R1...
5276147 Compounds and complexes useful in medical imaging  
The subject of the present invention is compounds which correspond to the following general formula: ##STR1## in which R1 and R3 independently of one another represent H, an alkyl, alkenyl,...
5274002 Trisubstituted phenyl analogs having activity for congestive heart failure  
Novel trisubstituted phenyl analogs are now found to have activity as for the treatment of congestive heart failure.
5264630 Halo-substituted thiobutanals  
Compounds of formula I ##STR1## wherein R is C1 -C4 alkyl or benzyl, are prepared by reacting a butanal of formula II ##STR2## wherein X and Y are each independently of the other chloro, bromo or...
5252714 Preparation and use of polyethylene glycol propionaldehyde  
A new polyethylene glycol derivative (PEG) having the property of not being destroyed by water and also being able to retain reactivity in water and selectively react with amine groups. Also...
5225602 Phenylacetaldehydes and the preparation of phenylacetaldehydes  
Phenylacetaldehydes of the structure (I) ##STR1## where the substituents X are 2,4-dichloro, difluoro, trifluoro, tetrafluoro, p-trifluoromethyl, 2-methyl-4-fluoro, haloalkoxy or haloalkylthio...
5191124 Sulfonium salts having acid-labile groups  
Sulfonium salts of the general formula ##STR1## where R1, R2 and R3 are identical or different and are aliphatic and/or aromatic radicals which may contain heteroatoms, or two of the radicals R1...
5169974 Process for manufacturing aryloxyaldehydes  
The invention concerns a novel process for the manufacture of various aryloxyaliphatic aldehydes and related arylthio analogues, which are useful as chemical intermediates. The process involves...
5132423 Method for conducting organic reactions using guanidinium salt as phase transfer catalyst  
Reactions between a solid polar and a non-polar compound, especially nucleophilic aromatic substitution reactions between an alkali metal salt of a hydroxyaromatic compound or thio analog thereof...

Matches 1 - 50 out of 144 1 2 3 >