Organic Compound Preparation TRIZ Cases

Vapor phase hydrogenolysis using supported noble metal catalysts eliminates hazardous ethylene oxide solvents while maintaining high selectivity.

A zirconium-tungsten-phosphorus mixed oxide catalyst promotes glycerin dehydration to acrolein with high selectivity.

Ruthenium alkylidene catalysts drive cross-metathesis of internal and alpha olefins to produce terminal olefins.

A two-step synthesis method for artepillin C using base initiators and alkali metal salts to generate high-purity intermediates.

Ultraviolet irradiation cleaves double bonds in perfluoroalkene while a fluorine source initiates radical generation for controlled backbone structure.

Alkyl glycidyl ethers react with carboxylic acids to form acylated intermediates, which undergo transesterification to yield pure 1-alkyl glycerol ethers.

Calcium phenate detergent and hindered phenolic antioxidants maintain high total base number, extending drain intervals despite copper-catalyzed oxidation.

Anion exchange resin and stabilizing agent inhibit iminodiacetonitrile decomposition during hydrogenation, extending catalyst life.

Spiro-bisphosphorous ligands coordinate transition metals to catalyze hydroformylation, resolving the trade-off between reaction rate and selectivity.

A fluorescent probe detects sulfenylated proteins via nucleophilic substitution and FRET mechanisms.

A dienophile reacts with yellow colour forming impurities to remove discolouration from crude ethylenically unsaturated acid products.

Oxidizing glycolaldehyde with nitric acid yields glycolic and glyoxylic acids, eliminating hazardous cyanide routes and fossil fuel dependencies.

An immobilized ionic liquid catalyst merges ethylene carbonate synthesis with alcoholysis, eliminating homogeneous separation steps to lower energy consumption.

Catalytic preparation of parylene AF4 accelerates synthesis in concentrated mixtures, reducing byproduct formation and purification complexity.

A palladium catalyst with a specific phosphorus ligand enables Suzuki coupling of aryl-chlorides in water.

Isotopic substitution of hydrogen with deuterium in bis(diarylamino)anthracene extends organic electronic device lifetime and quantum efficiency.

Copper catalyst enables halogenated aniline synthesis under milder conditions, avoiding high temperature and pressure equipment requirements.

Continuous metering into a heated rotary reactor creates a thin film that merges drying, denitration, and grinding to eliminate multi-stage complexity.

Heated effusion tube releases formaldehyde monomer vapor through a micro-porous metal structure, stabilizing concentration against decomposition.

Nucleophilic substitution replaces mechanical drying to yield truly anhydrous fluoride salts, eliminating water contamination and side reactions.

Oligomeric dispersants reduce interfacial energy at filler boundaries in PVC compositions to increase melt flow rates.

Recover iodide or bromide catalysts from carbon dioxide streams using alkali metal hydroxide to convert 2-iodoethanol into reusable salts.

Iron catalyst replaces expensive rhodium to lower costs while maintaining high conversion rates for olefin hydroformylation.

Adding N-oxyl compounds to the acetic acid saturator prevents fouling and extends maintenance intervals for continuous vinyl acetate production.

Integrated extraction and azeotropic distillation apparatus recovers acetic acid from aqueous streams using selective ester solvents.

A non-acidic Pd catalyst system hydrogenates carbon-carbon double bonds in unsaturated aldehydes.

Converting 18F fluoride into a gaseous form reduces transport losses and radioactive decay during delivery to remote synthesis sites.

Novel phosphate catalysts react tertiary vinyl carbinols with isopropenyl alkyl ethers to produce gamma delta unsaturated ketones.

Replacing precious metals with iron complexes reduces cost and toxicity while maintaining enantioselectivity.

Chiral proline derivatives catalyze nitro compound cyclization to produce stereospecific five-membered rings, eliminating optical resolution steps.

Reacting hydroxyl-containing indium carboxylate with lower carboxylic acid before adding long-chain acids.

Segmenting catalyst activity across layers controls the temperature difference between reaction zones, preventing hot spots that degrade selectivity and yield.

Replacing fermentation with catalytic oxidation of glucose to produce succinic acid, reducing carbon footprint while maintaining scalability.

A supported catalyst combines molybdenum-vanadium active components with inorganic fibers of varying diameters to enhance mechanical durability.

Chiral auxiliaries guide asymmetric synthesis to avoid column chromatography, while safer reagents replace hazardous thionyl chloride.

Dynamic oxygen control during thermal treatment resolves the contradiction between catalyst activity and process complexity, improving acrylic acid formation.

Replacing homogeneous solvents with a solid promoter simplifies product isolation via filtration while maintaining high yields of acrylic acid.

Replacing noble metals with nickel oxide reduces manufacturing cost while maintaining catalytic activity.

Enzymatic ring-opening of 6-methyl-5,6-dihydro-2-pyrone eliminates colored by-products from harsh chemical treatments.

N-alkyl polyalkenyl succinimides disperse polymerization by-products in acrylic acid monomer streams.

Segmenting fluorination steps resolves the trade-off between enhanced water repellence and increased synthesis complexity.

Sorbitol binder resolves binding force versus spheronization trade-offs to produce uniform potassium sorbate particles.

Segmenting phosgenation from distillation eliminates hydrodynamic instabilities, boosting column productivity by 40 percent while reducing fouling.

Simultaneous use of mixed catalysts accelerates conversion kinetics while suppressing non-upgradable humin formation in lignocellulosic processing.

Bromide anions in molten salts drive lactic acid dehydration, raising yields from 1% to 80% while cutting energy use.

Extracts organic acids into a water-immiscible phase using reactive amines, then converts them to esters for simplified downstream processing.

Fluidizing an ion exchange resin bed in an upflow reactor extends catalyst lifetime and maintains selectivity while eliminating energy-intensive water removal.

Reducing palladium with glycols improves catalyst selectivity and productivity in α,β-unsaturated carboxylic acid synthesis.

Introducing carbon monoxide after hydrogenation passivates the homogeneous catalyst, suppressing diol and tetrol formation to improve ethylene glycol purity.

Acidic medium hydrogenation eliminates salt byproducts, removing purification complexity while maintaining high reaction efficiency.