Organic Compound Preparation TRIZ Cases

Bidentate ligand titanium catalysts increase reaction rates and yields while reducing catalyst amounts in esterification processes.

Vacuum evaporation and natural cooling resolve particle size trade-offs to yield stable, non-agglomerating gamma-aminobutyric acid crystals.

Homolytic activation of O-H bonds in hydroxylated polymers breaks the polymer backbone into monomers via C-C bond scission.

Converting 1-adamantyldimethylamine with dimethyl sulfate followed by anion exchange eliminates mixed alkylation impurities and reduces costs.

Reacting chromium carbonate with propionic acid at room temperature to produce bio-available chromium propionate without external heat.

Fermentation byproduct carbon dioxide stabilizes oxidation flammability and heat transfer, eliminating fossil inert gases.

Direct demethylation of isomeric dichlorodiphenyl sulfones recovers chlorobenzene, reducing waste and process complexity.

Epoxidized plant oil monomers crosslink with synthetic epoxy resins to form durable thermosetting polymers.

A distillation column uses a C6-C7 hydrocarbon entrainer to separate methyl methacrylate from reaction mixtures.

Palladium catalyst drives oxidative esterification of unreactive internal olefins, achieving high yields of unsaturated esters without isomerization.

C8-16 linear or branched alkanes replace hazardous aprotic solvents in Mitsunobu reactions to enable safer processing and higher product yields.

A five-carbon ring derivative-containing polyurethane uses dicyclopentadiene-derived glycol monomers as chain extenders.

A cyclative C(sp3)-H/C(sp2)-H coupling process synthesizes tetralins using a native carboxylic acid directing group.

Ion exchange resin replaces mineral acids to hydrolyze methacrolein dimethyl acetal, eliminating corrosion and catalyst disposal complexity.

A modified aluminum catalyst system enables diastereoselective ring-closing of citronellal to produce n-isopulegol with high stereoselectivity.

Controlling mass loss rates during drying improves raw material conversion and end product selectivity in unsaturated carboxylic acid synthesis.

Condensing water from recycled effluent streams before dehydration columns prevents acrylic acid entrainment losses.

A mixed oxide catalyst oxidizes ethane to ethylene under mild conditions.

Alkali isethionate ammonolysis with ditaurinate catalysts and pre-separation removes sodium sulfate, boosting yields above 90% while minimizing waste.

Controlled stirring prevents channeling and solidification in mother liquor replacement towers, stabilizing the separation process.

Benzotrifluorides react with fluoro-olefins using strong Lewis acids to produce fluorinated aromatic compounds.

An ionic liquid solvent selectively separates impurities during oxidation, reducing 4-carboxybenzaldehyde content and eliminating complex purification steps.

Cobalt and bismuth promoters in vanadium phosphorus oxide catalysts increase n-butane conversion while suppressing acrylic acid formation.

Converts glycerol to hydroxyacetone then reduces it with a reducing agent or amine compound to improve selectivity and reduce byproduct formation.

Nitrogen-doped carbon supports bimetal active components to achieve selective hydrogenation of aromatic nitro compounds without auxiliary agents.

Sodium methoxide deacetylation yields stable solid products, avoiding oxidation issues from catechol instability.

Replacing hazardous methyl isocyanate with safer reagents to boost yields above 30 percent.

Merging esterification with vacuum distillation shifts equilibrium by removing water while recycling excess acid to cut complexity.

Catalytic ammonolysis of hydroxy precursors with ammonia, then distillation to remove toxic impurities for high purity amines.

A copper-doped porous metal oxide catalyst reduces alpha,beta-unsaturated ketones to saturated alcohols or ketones in aqueous solvents.

Phase separation extracts salts from phenolic by-products, preventing corrosion and reducing energy consumption during decomposition.

Staged titanium catalyst addition prevents decomposition during DOTP esterification, reducing volatility and fogging impurities.

Absorbing volatile cobalt carbonyl from hydroformylation offgases with an absorption liquid recycled to the demetalling step, preventing equipment fouling.

Doping the alloy minimizes takovite formation and aluminum leachability, maintaining stability during hydrogenation.

A diene iron complex compound reacts with deprotecting agents to produce sanshools via reduction and condensation steps.

A terephthalate ester composition with specific alkyl group ratios accelerates resin absorption and fusion.

Cyclic acetal hydrogenation resolves selectivity issues in polyol-ether production, enabling precise hydroxyl group distribution for branched polymers.

Formula I fluoroalkylating agent enables nucleophilic substitution under mild conditions without greenhouse gases.

Amorphous and crystalline phosphate salts form a composite catalyst that dehydrates hydroxypropionic acid to acrylic acid with high selectivity.

Composite alumina support resists hydrothermal degradation and water poisoning, maintaining reaction efficiency under high-pressure steam conditions.

Vacuum steam stripping removes hydrochloric acid below 50 ppm, eliminating corrosion risks and high energy consumption.

Membrane reactors integrate reaction and separation to eliminate batch hold times, reducing product loss while maintaining high throughput.

Extracting inhibitors from methacrolein synthesis streams enables high-yield polymerization, reducing reaction time and production costs.

Deuterium substitution reduces trapping rates in 18F-labeled MAO-B inhibitors, improving signal-to-background ratios by six to eight times.

Silver beta-ketocarboxylate compounds decompose rapidly at 210°C or less to form conductive metal silver without external reducing agents.

Replacing heated steam with process gas in a diffusion tower improves ammonia removal efficiency and reduces energy consumption.

Acid hydrolysis of dialkoxyalkenyl ethers removes acetal groups to yield formylalkenyl alkoxymethyl ethers.

Mono-orthoalkoxy substituted triarylphosphine ligands resolve catalyst instability and low selectivity in butadiene telomerization.